Equations

An equation is a mathematical statement, in symbols, that two things are the same (or equivalent). Equations are written with an equal sign. Equations are often used to state the equality of two expressions containing one or more variables.

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Hundreds of video tutorials on equations make it easy for you to better understand the concept.
Hundreds of word problems on equations give you all the practice you need.
Hundreds of printable worksheets on equations let you practice what you have learned by watching the video tutorials.

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Top Equations Worksheets

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absolute value, absolute value equations, equations, solving absolute value equations, .

Combining Like Terms Video Clip

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Combining Like Terms
Video Clip Length: 1 minute 13 seconds
Video Clip Views: 11412

This tutorial shows how to combine like terms in given polynomial, the variables, and the constants. You will learn to combine the coefficients of the same variable as well as pay attention to the signs of coefficients, for there are different rules for different signs and same signs.

algebraic fractions, constants, equations, expressions, number sense, numbers, polynomials, variables

Solving Multi Step Equations 2 Video Clip

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Solving Multi Step Equations 2
Video Clip Length: 2 minutes 12 seconds
Video Clip Views: 10299

This tutorial will show you how to solve linear equations with multiple steps. In order to solve for y, you need to combine like terms. First, reduce by adding constants on the left hand side together, then next, you should combine like terms, y's, and then get y by itself with undoing mutliplication using division.

equations, expressions

System Of Linear Equations In Two Variables Substitution Method 3 Video Clip

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System Of Linear Equations In Two Variables Substitution Method 3
Video Clip Length: 3 minutes 35 seconds
Video Clip Views: 9340

This clip shows how to solve a given system of two linear equations:

x - 3y = -5
2x - 5y = -9

equations, systems

Solving Equations with Fractional Coefficients Video Clip

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Solving Equations with Fractional Coefficients
Video Clip Length: 2 minutes 7 seconds
Video Clip Views: 7096

This tutorial will show you how to solve equations with fractional coefficients. You will also learn to add fractions as well as divide by fractions.

algebraic fractions, arithmetic operations, equations, expressions, number sense, numbers, operations

Solving Equations Requiring Cross Multiplication Video Clip

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Solving Equations Requiring Cross Multiplication
Video Clip Length: 2 minutes 42 seconds
Video Clip Views: 5970

This tutorial will show you how to perform you cross multiplication to solve for x. You need to use distributive property and also solve for the equation.

cross multiplication, equations

Finding Equation Of A Circle By Completing The Square 2 Video Clip

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Finding Equation Of A Circle By Completing The Square 2
Video Clip Length: 6 minutes 5 seconds
Video Clip Views: 3970

circle equation, circles, completing the square, curves, equations, plane figures, quadratic equations, shapes, solving equations, solving quadratic equations

Algebraic Equations With Radical Expressions 5 Video Clip

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Algebraic Equations With Radical Expressions 5
Video Clip Length: 5 minutes 25 seconds
Video Clip Views: 3486

This tutorial shows how to solve the algebraic equation:

√x + 7 = √x + 1

equations, expressions, number sense, numbers

Writing Logarithmic Equations In Exponential Form 2 Video Clip

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Writing Logarithmic Equations In Exponential Form 2
Video Clip Length: 33 seconds
Video Clip Views: 3362

equations, exponents, logarithmic equations, logarithms

Solving Equations With Fractions With Unlike Denominators 2 Video Clip

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Solving Equations With Fractions With Unlike Denominators 2
Video Clip Length: 2 minutes 5 seconds
Video Clip Views: 3358

equations, lcm, least common multiple, number sense, numbers

Solving Equations with Decimal Coefficients and involving Decimal Division Video Clip

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Solving Equations with Decimal Coefficients and involving Decimal Division
Video Clip Length: 3 minutes 5 seconds
Video Clip Views: 3022

The tutorial will show you how to solve the linear equation for missing variable, k. You need to combine like terms, the variables, k, first. Then, you need to simplify by using additive inverses and then to continue to solve for k.

algebraic fractions, arithmetic operations, decimal division, decimals, division, division of decimals, equations, expressions, number sense, numbers, operations, operations with decimals

Homework Help Questions

2x - 2y = 15
x + y = 11
5/2 - x = 7/10
Solve the system of equation:
2q + 3r = -1
5q + 5r = -3
Solve the system of equations:
x + y = -1
x - y = 1/3
Solve the system of equation:
23x + 21y = -593
21x + 23y = -595
Find the solutions to:
-2 |x-4| + 7 = 3
Find the solutions to:
-2 |x+4| = 6
Find the solutions to:
|x+2| = 5
Which way does the graph of
y= 2 |x-6| +9
open?
Which way does the absolute value graph open for

y = -3 |x+8| +12
Which graph is steeper?

y = (-1/2) |x|
or
y = (1/4) |x|
Where is the vertex of

y = (1/2) |x-3| + 6
Where is the vertex of

y = -2 | x + (1/2) | - 4
Where is the vertex of the equation

y = 3 |x+4| - 6
In the quadratic formula, if b² - 4ac is less than 0, what can you say about the solution?
In the quadratic formula, if b² - 4ac is greater than 0, what can you say about the solution?
What is b² - 4ac called in the quadratic formula?
Graph the quadratic formula

y = (-1/3) (x+1)² + 2
Graph the quadratic equation

y = 2 (x-2)² + 1
x²-8x+12=0
one number is five less than another. If twice the larger is divided by the smaller, the quotient is 3 and the remainder is 4. If none of the numbers is equal to zero, what are the two numbers?
5y-20/5y+15 x 2y+6/y-4
18p-45=0
0=2x+2x-8/7
x/2-x-1/3=5
-x+3y=-4
x+4y=-10
26=8 + v
2x+y=3y
8x=5y solve for x
x-6y=8
5x-30y=40
x+y=11
3x+4y=39
Find the vertex point of y=-2|x|+5
2x + 8y= -11
2x - 2y =-1
Solve using the elimination method
a(x-3)/b=2ax/c+5 solve for c
m=4n
3m-2n=20
-5(-2x-6)=30-7x
How do you do this problem.
h=-0.0425d²+3.57d
29 - 2x = 13
If a 5 foot tree cost $20 then what is the price of a 6-foot tree?
6=1 - 2n +5
3x=5y-15
x+y=5 and 2x-3y=4
-4x + y=9
8x + 5y=45
x+y=5
x-y=3
4x=1y+3
y=5x+3
solve by elimination method
-4x+9y=9
x- 3y= - 6
4d=5d-8
p=2b+2h for b
-x+8y=16
3x+4y=36
c²/3+19c/12+1=0
-6x+5y=18
4x-2y=-20
3y=36+9y
y=2x+8
2y=-2x-2
y-4=2
y=2x²-4x-15
5x+7y=6
10x-3y=46
x + 2y = 4
2x+y=3
-2x+5y=-9
xy=6
sqrt(x) - 1 = sqrt(x-7)
3y+2x=50
y=2x
x/4 + 8 = 18
y = 5x - 6
y = 9x - 7
g(x) ≤ -lx+2l+5
x = y - 1
y = 4 -2x
8c-d=-3
4c-5d=15
f(x)=5x-4 find f(2/3)
log₅ (3x-10) + log₅ (7) = 2
x²-8x+12=0
y= 2x+16
3y= 4x+3
2x+y=10
y=3x
5x+4y=-35
y=2x+1
y=x²-3x-10
2x + y² - 4y + 4 = 0
-x + y = 2
3x+2y=9
y=x+2
The sum of two numbers is 12 and product is 32. What are those numbers?
x² + 4y² = 64
9y² - 16x² = 144
Write a quadratic equation having the given numbers as solutions. -9 and -4
x²-8x+11
n/(n + 3) + 7/(n+4) =1
X³-2X²-X+2=0
y=0.15x + 0.79
Y=X+1
Y=3X-1
28/d=4
-x²+23x=46
4y = 2(x + 2y)