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 reverse order: first undo addition or subtraction, then undo multiplication or division.

Front

Solve for x: -4x + 1 = 21

Back

x = -5

Front

Solve for a: 7 + a/3 = 5

Back

a = -6

Front

What is the first step in solving the equation 5b - 6 = 24?

Back

Add 6 to both sides.

Front

What is the second step in solving the equation 5b - 6 = 24?

Back

Divide both sides by 5.

Front

Solve for a: 20 = 2 - a

Back

a = -18

Front

Solve for x: x/4 - 3 = 9

Back

x = 48

Front

What is the inverse operation of addition?

Back

Subtraction.

Front

What is the inverse operation of multiplication?

Back

Division.