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Anonymous
If n is equal to 2.5, 30n is equal to 75. This is the same as 30 doubled and a half.
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30
n + 16 = 25 Subtract '16' from both sides. n + 16 - 16 = 25 - 16 Collect terms n = 9
n = 4 25 x n = 25 x 4 25n = 100
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25n