M-9=-86

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Solution for M-9=-86 equation: 


Simplifying
M + -9 = -86

Reorder the terms:
-9 + M = -86

Solving
-9 + M = -86

Solving for variable 'M'.

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

Add '9' to each side of the equation.
-9 + 9 + M = -86 + 9

Combine like terms: -9 + 9 = 0
0 + M = -86 + 9
M = -86 + 9

Combine like terms: -86 + 9 = -77
M = -77

Simplifying
M = -77

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