Solving 2-Step Equations

Front

What is a 2-step equation?

Back

A 2-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a 2-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: 3x + 5 = 14

Back

x = 3

Front

Solve: 7 - 3y = 22

Back

y = -5

Front

Solve: 21 = 9 + 3x

Back

x = 4

Front

Solve: 8 - 3x = -13

Back

x = 7

Front

If x = 5, what is the equation?

Back

9x - 5 = 40

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 solution to the equation 4x - 1 = 15?

Back

x = 4.

Front

What does it mean to 'undo' an operation in solving equations?

Back

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