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 inverse operations in the reverse order of operations.

Front

What is the first step to solve the equation: 20 = 2 - a?

Back

Subtract 2 from both sides to isolate -a.

Front

Solve for a: 20 = 2 - a.

Back

a = -18.

Front

What is the first step to solve the equation: -4x + 1 = 21?

Back

Subtract 1 from both sides.

Front

Solve for x: -4x + 1 = 21.

Back

x = -5.

Front

What is the first step to solve the equation: 11 - 3x = 44?

Back

Subtract 11 from both sides.

Front

Solve for x: 11 - 3x = 44.

Back

x = -11.

Front

What is the first step to solve the equation: 2x + 3x + 4 = 44?

Back

Combine like terms to get 5x + 4 = 44.

Front

Solve for x: 2x + 3x + 4 = 44.

Back

x = 8.