-20=7m-8+5m

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Solution for -20=7m-8+5m equation:


Simplifying
-20 = 7m + -8 + 5m

Reorder the terms:
-20 = -8 + 7m + 5m

Combine like terms: 7m + 5m = 12m
-20 = -8 + 12m

Solving
-20 = -8 + 12m

Solving for variable 'm'.

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

Add '-12m' to each side of the equation.
-20 + -12m = -8 + 12m + -12m

Combine like terms: 12m + -12m = 0
-20 + -12m = -8 + 0
-20 + -12m = -8

Add '20' to each side of the equation.
-20 + 20 + -12m = -8 + 20

Combine like terms: -20 + 20 = 0
0 + -12m = -8 + 20
-12m = -8 + 20

Combine like terms: -8 + 20 = 12
-12m = 12

Divide each side by '-12'.
m = -1

Simplifying
m = -1

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