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 for x: 5x + 12 = 27

Back

x = 3

Front

Solve for x: 108 = 13x - 9

Back

x = 9

Front

Solve for x: 98 = 11x - 12

Back

x = 10

Front

Solve for x: 8x + 26 = 58

Back

x = 4

Front

Solve for x: 14x - 9 = 61

Back

x = 5

Front

What is the first step to solve the equation 5x + 12 = 27?

Back

Subtract 12 from both sides to get 5x = 15.

Front

What is the second step to solve the equation 5x = 15?

Back

Divide both sides by 5 to find x = 3.

Front

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

Back

'Undoing' an operation means performing the opposite operation to isolate the variable.