6(-1+2m)=-90

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Solution for 6(-1+2m)=-90 equation: 


Simplifying
6(-1 + 2m) = -90
(-1 * 6 + 2m * 6) = -90
(-6 + 12m) = -90

Solving
-6 + 12m = -90

Solving for variable 'm'.

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

Add '6' to each side of the equation.
-6 + 6 + 12m = -90 + 6

Combine like terms: -6 + 6 = 0
0 + 12m = -90 + 6
12m = -90 + 6

Combine like terms: -90 + 6 = -84
12m = -84

Divide each side by '12'.
m = -7

Simplifying
m = -7

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