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 operations.

Front

Solve for d: 2d + 7 = 9

Back

d = 1

Front

Solve for n: -3 + n = 25

Back

n = 28

Front

Solve for z: 11 = 3z + 5

Back

z = 2

Front

Solve for f: 11 = 18 + 7f

Back

f = -1

Front

Solve for r: -15 = 2r + 1

Back

r = -8

Front

What is the first step to solve the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to get 2x = 8.

Front

What is the second step to solve the equation 2x = 8?

Back

Divide both sides by 2 to get x = 4.

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).