7n-4=87

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Solution for 7n-4=87 equation: 


Simplifying
7n + -4 = 87

Reorder the terms:
-4 + 7n = 87

Solving
-4 + 7n = 87

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 7n = 87 + 4

Combine like terms: -4 + 4 = 0
0 + 7n = 87 + 4
7n = 87 + 4

Combine like terms: 87 + 4 = 91
7n = 91

Divide each side by '7'.
n = 13

Simplifying
n = 13

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