2-Step Equation Warm-up

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

What is the first step in solving the equation -3x + 7 = -15?

Back

Subtract 7 from both sides.

Front

What do you do after isolating the variable term in a 2-step equation?

Back

You perform the inverse operation to solve for the variable.

Front

What is the inverse operation of addition?

Back

Subtraction.

Front

What is the inverse operation of multiplication?

Back

Division.

Front

If you divide both sides of an equation by a negative number, what happens to the inequality?

Back

The direction of the inequality sign flips.

Front

What mistake did Susan make when solving -5x = 10?

Back

She forgot the negative on the -5 when she divided.

Front

How do you check if your solution to a 2-step equation is correct?

Back

Substitute the solution back into the original equation.

Front

What is the solution to the equation 2x + 4 = 12?

Back

x = 4.

Front

What is the solution to the equation -3x + 7 = -15?

Back

x = 2.