-88 = 2 + 2(5m - 5)
Distribute 2 inside the parentheses.
-88 = 2 + 10m - 10
Combine like terms on the right side.
-88 = -8 + 10m
Add 8 to both sides.
-80 = 10m
Divide both sides by 10.
[tex] \boxed {m = -8} [/tex]
