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14-03-2019
Mathematics

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how do I simplify an expression for the perimeter of a figure n + 7 n + 7 n + 3 n+ 3 n + 7

Respuesta :

14-03-2019

21n + 7

Combine like terms.

n, 7n, 7n, 3n, and 3n are all like terms. These can be added together as 21n.

7 is the only term by itself.

Put these together to get 21n + 7.

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