m+2m-4=20

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Solution for m+2m-4=20 equation: 


Simplifying
m + 2m + -4 = 20

Reorder the terms:
-4 + m + 2m = 20

Combine like terms: m + 2m = 3m
-4 + 3m = 20

Solving
-4 + 3m = 20

Solving for variable 'm'.

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

Add '4' to each side of the equation.
-4 + 4 + 3m = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 3m = 20 + 4
3m = 20 + 4

Combine like terms: 20 + 4 = 24
3m = 24

Divide each side by '3'.
m = 8

Simplifying
m = 8

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