*2.5: One-Step Equations (Addition and Subtraction)

Front

What is the inverse operation of addition?

Back

subtraction

Front

What is the inverse operation of subtraction?

Back

addition

Front

Solve for x: x - 8 = -5

Back

x = 3

Front

Solve for x: x - 32 = 49

Back

x = 81

Front

Solve for y: y - 4.6 = 12

Back

y = 16.6

Front

What is a one-step equation?

Back

An equation that can be solved in one operation (addition or subtraction).

Front

What does it mean to isolate a variable?

Back

To get the variable alone on one side of the equation.

Front

If x + 5 = 12, what is x?

Back

x = 7

Front

If y - 10 = 15, what is y?

Back

y = 25

Front

What is the first step to solve x + 4 = 10?

Back

Subtract 4 from both sides.