M+-7=-15

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Solution for M+-7=-15 equation: 


Simplifying
M + -7 = -15

Reorder the terms:
-7 + M = -15

Solving
-7 + M = -15

Solving for variable 'M'.

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

Add '7' to each side of the equation.
-7 + 7 + M = -15 + 7

Combine like terms: -7 + 7 = 0
0 + M = -15 + 7
M = -15 + 7

Combine like terms: -15 + 7 = -8
M = -8

Simplifying
M = -8

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