-4=-m+2m

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


Simplifying
-4 = -1m + 2m

Combine like terms: -1m + 2m = 1m
-4 = 1m

Solving
-4 = 1m

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.
-4 + -1m = 1m + -1m

Combine like terms: 1m + -1m = 0
-4 + -1m = 0

Add '4' to each side of the equation.
-4 + 4 + -1m = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1m = 0 + 4
-1m = 0 + 4

Combine like terms: 0 + 4 = 4
-1m = 4

Divide each side by '-1'.
m = -4

Simplifying
m = -4

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