W/3 - 4 < 13

3 answers

Add 4 to both sides, then multiply both sides by 3.
9z+8+3(2-4z)-9=-40
Get rid of parentheses.

9z+8+6-12z-9 = 40

Combine terms.

-3z + 5 = 40

Subtract 5 from both sides and then divide by
-3.