jmc

prealgebra intermediate

Problem

Simplify

(2 - 3 z) - (3 + 4 z)

Solution

We distribute the negative sign so the expression becomes

(2 - 3 z) - (3 + 4 z) = 2 - 3 z - 3 - 4 z = 2 - 3 - 3 z - 4 z = - 1 - 7 z .

Final answer

-1-7z