how do i sove 3n+9=7n-15

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1 Answer

how do i sove 3n+9=7n-15
I need to know the steps to solve this equation

3n + 9 = 7n - 15
3n + 9 - 7n = 7n - 15 - 7n
-4n + 9 = -15
-4n + 9 - 9 = -15 - 9
-4n = -24
-4n / -4 = -24 / -4
n = 6
by Level 11 User (78.4k points)

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