12 − (n − 6) = 3(n + 5) what is n ?

asked Sep 19, 2022 230k views

2 votes

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5 votes

Answer:

$12 - (n - 6) = 3(n + 5) \\ 12 - n + 6 = 3n + 15 \\ 3n + n = 12 + 6 - 15 \\(3 + 1)n = 18 - 15 \\ 4n = 3 \\ \boxed{n = (3)/(4) }$

Benjin answered Sep 21, 2022

6.1k points

4 votes

Answer:

n=(3)/(4)

Explanation:

$12-(n-6)=3(n+5)\\12-n+6=3n+15\\18-n=3n+15\\18-n+n=3n+15+n\\18=4n+15\\18-15=4n+15-15\\3=4n\\(3)/(4)=(4n)/(4)\\(3)/(4)=n$

Jakob Nissen answered Sep 26, 2022

5.8k points

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