m-(-15)=21

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Solution for m-(-15)=21 equation: 


Simplifying
m + -1(-15) = 21

Multiply -1 * -15
m + 15 = 21

Reorder the terms:
15 + m = 21

Solving
15 + m = 21

Solving for variable 'm'.

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

Add '-15' to each side of the equation.
15 + -15 + m = 21 + -15

Combine like terms: 15 + -15 = 0
0 + m = 21 + -15
m = 21 + -15

Combine like terms: 21 + -15 = 6
m = 6

Simplifying
m = 6

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