2-Step Equations

Front

What is a 2-step equation?

Back

A 2-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a 2-step equation?

Back

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

Front

Solve for x: -3x + 8 = -1

Back

x = 3

Front

Solve for x: 2x + 6 = 18

Back

x = 6

Front

Solve for x: 3x - 9 = 9

Back

x = 6

Front

Solve for x: -1x + 10 = 5

Back

x = 5

Front

Solve for x: 4x - 5 = 11

Back

x = 4

Front

What is the first step to solve the equation 2x + 6 = 18?

Back

Subtract 6 from both sides to get 2x = 12.

Front

What is the second step to solve the equation 2x = 12?

Back

Divide both sides by 2 to get x = 6.

Front

What does it mean to perform the inverse operation?

Back

An inverse operation reverses the effect of the original operation (e.g., addition and subtraction are inverses).