M-7-5=-9

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Solution for M-7-5=-9 equation: 


Simplifying
M + -7 + -5 = -9

Reorder the terms:
-7 + -5 + M = -9

Combine like terms: -7 + -5 = -12
-12 + M = -9

Solving
-12 + M = -9

Solving for variable 'M'.

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

Add '12' to each side of the equation.
-12 + 12 + M = -9 + 12

Combine like terms: -12 + 12 = 0
0 + M = -9 + 12
M = -9 + 12

Combine like terms: -9 + 12 = 3
M = 3

Simplifying
M = 3

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