Solving One Step Addition and Subtraction Equations

Front

What is a one-step addition equation?

Back

A one-step addition equation is an equation that can be solved in one step by adding a number to both sides to isolate the variable.

Front

Solve for x: x + 12 = 20

Back

x = 8

Front

What is a one-step subtraction equation?

Back

A one-step subtraction equation is an equation that can be solved in one step by subtracting a number from both sides to isolate the variable.

Front

Solve for w: w + 27 = 58

Back

w = 31

Front

Solve for w: w - 113 = 4

Back

w = 117

Front

What is the inverse operation of adding (+)?

Back

Subtracting (-) is the inverse operation of adding.

Front

What is the inverse operation of subtracting (-)?

Back

Adding (+) is the inverse operation of subtracting.

Front

Solve for x: x + 9 = 38

Back

x = 29

Front

What does it mean to isolate a variable?

Back

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

Front

What is the first step to solve x + 5 = 12?

Back

Subtract 5 from both sides to isolate x.