Solving Addition and Subtraction Equations

Front

c - 11 = 9

Back

c = 20

Front

54 = s + 34

Back

s = 20

Front

b + 13 = 13

Back

b = 0

Front

b - 28 = 33

Back

b = 61

Front

What is the main goal in solving equations?

Back

Isolate the variable

Front

What does it mean to isolate a variable?

Back

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

Front

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

Back

Subtract 5 from both sides.

Front

If 3x = 12, what is the value of x?

Back

x = 4

Front

What is the inverse operation of addition?

Back

Subtraction

Front

What is the inverse operation of subtraction?

Back

Addition