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LRC

Math Refresher: Solving Equations

Math Refresher

Solving Equations

EQUATIONS 

In mathematics, a variable is a letter which can represent a variety of different numbers. For example:  p = 2.2k .  This can be used to convert a weight from kilograms (k) to pounds (p). Since you could substitute different numbers in for it is called a variable. 

The formula we just looked at is called an equation because it contains an equal sign with something on both sides. 

A combination of variables and numbers using the operations of addition/subtraction, and multiplication/division without an equal sign or if there is an equal sign,without something on both sides of the equal sign, is known as an expression

If an equation had a solution that means there is a number that could be substituted in place of the variable that would balance each side of the equation.      

Practice

Equations (click left and right)

Solving One-Step Equations

Solving Two-Step Equations

Solving Multi-Step Equations

Additional Equations Videos (click left and right)

Solving Basic Equations - Part 1

Solving Basic Equations - Part 2

Solving 2-Step Equations

Basic Inequalities

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