4m+12-5m-15=20

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Solution for 4m+12-5m-15=20 equation:


Simplifying
4m + 12 + -5m + -15 = 20

Reorder the terms:
12 + -15 + 4m + -5m = 20

Combine like terms: 12 + -15 = -3
-3 + 4m + -5m = 20

Combine like terms: 4m + -5m = -1m
-3 + -1m = 20

Solving
-3 + -1m = 20

Solving for variable 'm'.

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

Add '3' to each side of the equation.
-3 + 3 + -1m = 20 + 3

Combine like terms: -3 + 3 = 0
0 + -1m = 20 + 3
-1m = 20 + 3

Combine like terms: 20 + 3 = 23
-1m = 23

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

Simplifying
m = -23

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