-8m+-9(5+-3m)=12

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Solution for -8m+-9(5+-3m)=12 equation:


Simplifying
-8m + -9(5 + -3m) = 12
-8m + (5 * -9 + -3m * -9) = 12
-8m + (-45 + 27m) = 12

Reorder the terms:
-45 + -8m + 27m = 12

Combine like terms: -8m + 27m = 19m
-45 + 19m = 12

Solving
-45 + 19m = 12

Solving for variable 'm'.

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

Add '45' to each side of the equation.
-45 + 45 + 19m = 12 + 45

Combine like terms: -45 + 45 = 0
0 + 19m = 12 + 45
19m = 12 + 45

Combine like terms: 12 + 45 = 57
19m = 57

Divide each side by '19'.
m = 3

Simplifying
m = 3

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