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Stels [109]
3 years ago
6

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

Mathematics
1 answer:
Elan Coil [88]3 years ago
4 0

Answer:

<h2>          The second:  8m + 7n - 3  </h2>

Step-by-step explanation:

Q = 7m + 3n,

R = 11 - 2m,

S = n + 5,

T = -m - 3n + 8.

Q + S - T = 7m + 3n + (n + 5) - (-m - 3n + 8)

Q + S - T = <u>7m</u> + 3n + n + 5 <u>+ m</u> + 3n - 8

Q + S - T = 8m + 7n - 3

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