sara1996 sara1996

30-01-2018
Geography

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one side of a square is (3n + 7) what is its perimeter

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Аноним Аноним

30-01-2018

First to subtract by the 3 from the both sides. Then cross out 3 -3 it equals to 0.

(3n+7)
-3 -3
~~~~~~
4
Answer is n=4

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