-9=-1+-2m

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Solution for -9=-1+-2m equation:


Simplifying
-9 = -1 + -2m

Solving
-9 = -1 + -2m

Solving for variable 'm'.

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

Add '2m' to each side of the equation.
-9 + 2m = -1 + -2m + 2m

Combine like terms: -2m + 2m = 0
-9 + 2m = -1 + 0
-9 + 2m = -1

Add '9' to each side of the equation.
-9 + 9 + 2m = -1 + 9

Combine like terms: -9 + 9 = 0
0 + 2m = -1 + 9
2m = -1 + 9

Combine like terms: -1 + 9 = 8
2m = 8

Divide each side by '2'.
m = 4

Simplifying
m = 4

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