-15=9n+1-7n

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Solution for -15=9n+1-7n equation:


Simplifying
-15 = 9n + 1 + -7n

Reorder the terms:
-15 = 1 + 9n + -7n

Combine like terms: 9n + -7n = 2n
-15 = 1 + 2n

Solving
-15 = 1 + 2n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-2n' to each side of the equation.
-15 + -2n = 1 + 2n + -2n

Combine like terms: 2n + -2n = 0
-15 + -2n = 1 + 0
-15 + -2n = 1

Add '15' to each side of the equation.
-15 + 15 + -2n = 1 + 15

Combine like terms: -15 + 15 = 0
0 + -2n = 1 + 15
-2n = 1 + 15

Combine like terms: 1 + 15 = 16
-2n = 16

Divide each side by '-2'.
n = -8

Simplifying
n = -8

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