-7n+7-7=21

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Solution for -7n+7-7=21 equation: 


Simplifying
-7n + 7 + -7 = 21

Reorder the terms:
7 + -7 + -7n = 21

Combine like terms: 7 + -7 = 0
0 + -7n = 21
-7n = 21

Solving
-7n = 21

Solving for variable 'n'.

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

Divide each side by '-7'.
n = -3

Simplifying
n = -3

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