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26 April, 18:52

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

Simplify [Q - R] + [S - T].

10m + 5n - 24

10m - 5n + 24

10m + 7n - 14

10m - 7n - 14

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Answers (1)
  1. 26 April, 18:55
    0
    10m + 7n - 14

    Steps:

    [7m + 3n - (11 - 2m) ] + [n + 5 - (-m - 3n + 8) ]

    7m + 3n - 11 + 2m + n + 5 + m + 3n - 8

    10m + 7n - 14
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