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 appear in the equation.

Front

Solve for t: 11 - 2t = -15

Back

t = 13

Front

Solve for y: -3y + 4 = 31

Back

y = -9

Front

Solve for b: 15 - 2b = -9

Back

b = 12

Front

Solve for k: 7k - 14 = 42

Back

k = 8

Front

Back

r = 28

Front

What is the first step to solve the equation 11 - 2t = -15?

Back

Subtract 11 from both sides to get -2t = -26.

Front

What is the second step to solve the equation -3y + 4 = 31?

Back

Subtract 4 from both sides to get -3y = 27.

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.