Solving Addition and Subtraction Equations

Front

What is the main goal in solving equations?

Back

Isolate the variable.

Front

b - 28 = 33. What is b?

Back

b = 61.

Front

x + 7 = 13. What is x?

Back

x = 6.

Front

y - 7 = 5. What is y?

Back

y = 12.

Front

Solve for p: p + 22 = 66.

Back

p = 44.

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 x?

Back

x = 4.

Front

What is the inverse operation of addition?

Back

Subtraction.

Front

What is the inverse operation of subtraction?

Back

Addition.