2 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: 2x + 9 = -3

Back

x = -6

Front

Solve for y: 4y - 8 = 12

Back

y = 5

Front

Solve for x: 5x + 3 = -12

Back

x = -3

Front

Solve for x: 5x - 7 = 13

Back

x = 4

Front

Solve for x: -2x - 10 = 6

Back

x = -8

Front

What is the first step to solve the equation 3x + 4 = 10?

Back

Subtract 4 from both sides to get 3x = 6.

Front

What is the second step to solve the equation 3x = 6?

Back

Divide both sides by 3 to get x = 2.

Front

What does it mean to 'undo' an operation in algebra?

Back

To 'undo' an operation means to perform the opposite operation to isolate the variable.