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Anonymous
It is: 4m+5
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If 3m - 7 = 8, then m = 5
3m + 15 = 45 3m = 30 m = 10
M = 22
mn - 15 + 3m - 5n Rearranging: mn + 3m - 5n - 15 = m(n + 3) - 5(n + 3) = (m - 5)*(n + 3)
m(3m + 2)