-M-(-5)=-15

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Solution for -M-(-5)=-15 equation: 


Simplifying
-1M + -1(-5) = -15

Multiply -1 * -5
-1M + 5 = -15

Reorder the terms:
5 + -1M = -15

Solving
5 + -1M = -15

Solving for variable 'M'.

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

Add '-5' to each side of the equation.
5 + -5 + -1M = -15 + -5

Combine like terms: 5 + -5 = 0
0 + -1M = -15 + -5
-1M = -15 + -5

Combine like terms: -15 + -5 = -20
-1M = -20

Divide each side by '-1'.
M = 20

Simplifying
M = 20

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