8.7=n-4

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Solution for 8.7=n-4 equation: 


Simplifying
8.7 = n + -4

Reorder the terms:
8.7 = -4 + n

Solving
8.7 = -4 + 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.
8.7 + -1n = -4 + n + -1n

Combine like terms: n + -1n = 0
8.7 + -1n = -4 + 0
8.7 + -1n = -4

Add '-8.7' to each side of the equation.
8.7 + -8.7 + -1n = -4 + -8.7

Combine like terms: 8.7 + -8.7 = 0.0
0.0 + -1n = -4 + -8.7
-1n = -4 + -8.7

Combine like terms: -4 + -8.7 = -12.7
-1n = -12.7

Divide each side by '-1'.
n = 12.7

Simplifying
n = 12.7

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