Question

Simplify -4m + 5n - 2 - 3m + 3n + 7.

A) -7m + 8n - 9
B) -7m + 8n + 5
C) -7m2 + 8n2 - 9
D) -m + 8n - 9

Answer 1

-4m + 5n - 2 - 3m + 3n + 7 combine like terms

= (-4m - 3m) + (5n + 3n) + (-2 + 7)

= -7m + 8n + 5 → B)