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: 4x + 7 = 23

Back

x = 4

Front

Solve for w: 5w + 12 = 47

Back

w = 7

Front

Solve for c: 3c + 5 = 23

Back

c = 6

Front

Solve for p: 6p - 5 = 13

Back

p = 3

Front

Solve for a: 15 = 2a + 7

Back

a = 4

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 'undo' an operation in algebra?

Back

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