Write the original equation.
Flip subtraction to addition.
Remove zero pairs.
Combine like terms.
-tile from both sides.
to both sides.
on both sides.
Follow steps similar to part (a).
Use the eTools below to help solve the problems.
Click the link at right for the full version of the eTool: 3-14a HW eTool
Click the link at right for the full version of the eTool: CC3 3-14b HW eTool