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 d: 2d + 7 = 9

Back

d = 1

Front

Solve for k: 9k - 8 = 10

Back

k = 2

Front

Solve for a: -24 - a = -15

Back

a = -9

Front

Solve for n: 3 + 9n = 21

Back

n = 2

Front

Solve for e: 22 = 4 + 6e

Back

e = 3

Front

What is the first step to solve the equation 2d + 7 = 9?

Back

Subtract 7 from both sides to get 2d = 2.

Front

What is the second step to solve the equation 9k - 8 = 10?

Back

Add 8 to both sides to get 9k = 18.

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).