Solving Two Step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in the reverse order of how they are applied.

Front

Solve for x: 6 - 3x = 21

Back

x = -5

Front

Solve for a: 15 = 2a + 7

Back

a = 4

Front

Solve for y: 4y + 1 = 13

Back

y = 3

Front

What is the first step to solve the equation -3x + 5 = -13?

Back

Subtract 5 from both sides to get -3x = -18.

Front

What is the second step to solve the equation -3x = -18?

Back

Divide both sides by -3 to find x = 6.

Front

What does it mean to perform the inverse operation?

Back

An inverse operation reverses the effect of the original operation, such as addition and subtraction or multiplication and division.

Front

Solve for v: 8 = 4v + 12

Back

v = -1

Front

What is the purpose of solving two-step equations?

Back

The purpose is to find the value of the variable that makes the equation true.