15+(m-2)=21

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Solution for 15+(m-2)=21 equation:


Simplifying
15 + (m + -2) = 21

Reorder the terms:
15 + (-2 + m) = 21

Remove parenthesis around (-2 + m)
15 + -2 + m = 21

Combine like terms: 15 + -2 = 13
13 + m = 21

Solving
13 + m = 21

Solving for variable 'm'.

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

Add '-13' to each side of the equation.
13 + -13 + m = 21 + -13

Combine like terms: 13 + -13 = 0
0 + m = 21 + -13
m = 21 + -13

Combine like terms: 21 + -13 = 8
m = 8

Simplifying
m = 8

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