-15+3n=n-7

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Solution for -15+3n=n-7 equation:


Simplifying
-15 + 3n = n + -7

Reorder the terms:
-15 + 3n = -7 + n

Solving
-15 + 3n = -7 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
-15 + 3n + -1n = -7 + n + -1n

Combine like terms: 3n + -1n = 2n
-15 + 2n = -7 + n + -1n

Combine like terms: n + -1n = 0
-15 + 2n = -7 + 0
-15 + 2n = -7

Add '15' to each side of the equation.
-15 + 15 + 2n = -7 + 15

Combine like terms: -15 + 15 = 0
0 + 2n = -7 + 15
2n = -7 + 15

Combine like terms: -7 + 15 = 8
2n = 8

Divide each side by '2'.
n = 4

Simplifying
n = 4

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