12+9=m-2

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Solution for 12+9=m-2 equation:


Simplifying
12 + 9 = m + -2

Combine like terms: 12 + 9 = 21
21 = m + -2

Reorder the terms:
21 = -2 + m

Solving
21 = -2 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
21 + -1m = -2 + m + -1m

Combine like terms: m + -1m = 0
21 + -1m = -2 + 0
21 + -1m = -2

Add '-21' to each side of the equation.
21 + -21 + -1m = -2 + -21

Combine like terms: 21 + -21 = 0
0 + -1m = -2 + -21
-1m = -2 + -21

Combine like terms: -2 + -21 = -23
-1m = -23

Divide each side by '-1'.
m = 23

Simplifying
m = 23

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