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

Solve for a: 2a + 7 = 15

Back

a = 4

Front

What is the first step to solve the equation 2a + 7 = 15?

Back

Subtract 7 from both sides to isolate the term with the variable.

Front

What is the second step to solve the equation 2a = 8?

Back

Divide both sides by 2 to solve for a.

Front

If 3x - 5 = 10, what is the value of x?

Back

x = 5

Front

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

Back

To isolate a variable means to get the variable alone on one side of the equation.

Front

What operation would you use to eliminate a constant from an equation?

Back

You would use subtraction or addition, depending on the sign of the constant.

Front

Solve for b: 4b + 12 = 28

Back

b = 4

Front

What is the purpose of solving equations?

Back

The purpose is to find the value of the variable that makes the equation true.

Front

If 5y + 3 = 18, what is the first step to solve for y?

Back

Subtract 3 from both sides to get 5y = 15.