3n-15=7n+n EXPLAIN NUMBER FORM NO WORDS AT ALL

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asked Sep 21, 2021 62.6k views

4 votes

3n-15=7n+n EXPLAIN NUMBER FORM NO WORDS AT ALL

Mathematics
high-school

AppFzx asked

by AppFzx

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2 Answers

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Explanation:

3n−15=7n+n

3n-15=8n

3n-15+15=8n+15

3n=8n+15

3n-8n=8n+15-8n

-5n=15

answer:

n= -3

Mike Harris answered Sep 22, 2021

by Mike Harris

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5 votes

Explanation:

3n-7n-n = 15

5n = 15

n = 15 ÷ 5

n = 3

Pawan Sen answered Sep 28, 2021

by Pawan Sen

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