15=6+7n-5

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Solution for 15=6+7n-5 equation: 


Simplifying
15 = 6 + 7n + -5

Reorder the terms:
15 = 6 + -5 + 7n

Combine like terms: 6 + -5 = 1
15 = 1 + 7n

Solving
15 = 1 + 7n

Solving for variable 'n'.

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

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

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

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

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

Combine like terms: 1 + -15 = -14
-7n = -14

Divide each side by '-7'.
n = 2

Simplifying
n = 2

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