5+15n-1=9n+121-7n

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Solution for 5+15n-1=9n+121-7n equation:


Simplifying
5 + 15n + -1 = 9n + 121 + -7n

Reorder the terms:
5 + -1 + 15n = 9n + 121 + -7n

Combine like terms: 5 + -1 = 4
4 + 15n = 9n + 121 + -7n

Reorder the terms:
4 + 15n = 121 + 9n + -7n

Combine like terms: 9n + -7n = 2n
4 + 15n = 121 + 2n

Solving
4 + 15n = 121 + 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.
4 + 15n + -2n = 121 + 2n + -2n

Combine like terms: 15n + -2n = 13n
4 + 13n = 121 + 2n + -2n

Combine like terms: 2n + -2n = 0
4 + 13n = 121 + 0
4 + 13n = 121

Add '-4' to each side of the equation.
4 + -4 + 13n = 121 + -4

Combine like terms: 4 + -4 = 0
0 + 13n = 121 + -4
13n = 121 + -4

Combine like terms: 121 + -4 = 117
13n = 117

Divide each side by '13'.
n = 9

Simplifying
n = 9

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