Question

Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8.

Simplify Q + S - T.

-8m + 7n - 3
-8m - 7n - 3
8m + 7n - 3
8m - 7n - 3

Answer 1

8m+7n-3

Explanation:

this is what lead to the answer

7m + 3n + n + 5 - (-m - 3n + 8) =

7m + 4n + 5 + m + 3n - 8

Answer 2

Q = 7m + 3n
R = 11 - 2m
S = n + 5
T = -m - 3n + 8

simplify Q + S - T

7m + 3n + n + 5 - (-m - 3n + 8) =
7m + 4n + 5 + m + 3n - 8
8m + 7n - 3 <====