Solving and Writing 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

What is the first step in solving the equation: 5x + 7 = 12?

Back

Subtract 7 from both sides.

Front

What is the second step in solving the equation: 2x + 5 = 15?

Back

Divide by 2 after subtracting 5.

Front

How do you write an equation for Joseph's iPhone sale if he sold it for $180?

Back

The equation is 3x = 180, where x is the price he paid.

Front

What does it mean to isolate the variable in an equation?

Back

Isolating the variable means to manipulate the equation so that the variable is on one side and all other terms are on the other side.

Front

What is the solution to the equation 4x + 7 = 23?

Back

x = 4.

Front

What is the first step in solving the equation 2(n + 5) = -2?

Back

Distribute 2 to all terms in the parenthesis.

Front

What operation would you perform first to solve the equation 3x = 180?

Back

Divide both sides by 3.

Front

What is the purpose of using inverse operations in solving equations?

Back

Inverse operations are used to undo operations and isolate the variable.

Front

What is the solution to the equation 2x + 5 = 15?

Back

x = 5.