Mathematics, 31.07.2019 09:00 aarionna8
Given: q = 7m + 3n, r = 11 - 2m, s = n + 5, and t = -m - 3n + 8. simplify [q - r] + [s - t].
Answers: 1
![[Q - R] + [S - T]=10m+7n-14](/tpl/images/0153/8094/495ba.png)
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[ ∵ (-)(+)=(-) and (-)(-)=(+)] 
[Combine like terms.]
[ ∵ (-)(+)=(-) and (-)(-)=(+)]
[Combine like terms.]![[Q - R] + [S - T]=[9m +3n-11]+[4n +m-3]](/tpl/images/0153/8094/bbb63.png)
[combine like terms]
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Given: q = 7m + 3n, r = 11 - 2m, s = n + 5, and t = -m - 3n + 8. simplify [q - r] + [s - t]....
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