3m+42=5m+12

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Solution for 3m+42=5m+12 equation:


Simplifying
3m + 42 = 5m + 12

Reorder the terms:
42 + 3m = 5m + 12

Reorder the terms:
42 + 3m = 12 + 5m

Solving
42 + 3m = 12 + 5m

Solving for variable 'm'.

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

Add '-5m' to each side of the equation.
42 + 3m + -5m = 12 + 5m + -5m

Combine like terms: 3m + -5m = -2m
42 + -2m = 12 + 5m + -5m

Combine like terms: 5m + -5m = 0
42 + -2m = 12 + 0
42 + -2m = 12

Add '-42' to each side of the equation.
42 + -42 + -2m = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -2m = 12 + -42
-2m = 12 + -42

Combine like terms: 12 + -42 = -30
-2m = -30

Divide each side by '-2'.
m = 15

Simplifying
m = 15

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