7-9(3m+15)=12m+18+10

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Solution for 7-9(3m+15)=12m+18+10 equation:


Simplifying
7 + -9(3m + 15) = 12m + 18 + 10

Reorder the terms:
7 + -9(15 + 3m) = 12m + 18 + 10
7 + (15 * -9 + 3m * -9) = 12m + 18 + 10
7 + (-135 + -27m) = 12m + 18 + 10

Combine like terms: 7 + -135 = -128
-128 + -27m = 12m + 18 + 10

Reorder the terms:
-128 + -27m = 18 + 10 + 12m

Combine like terms: 18 + 10 = 28
-128 + -27m = 28 + 12m

Solving
-128 + -27m = 28 + 12m

Solving for variable 'm'.

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

Add '-12m' to each side of the equation.
-128 + -27m + -12m = 28 + 12m + -12m

Combine like terms: -27m + -12m = -39m
-128 + -39m = 28 + 12m + -12m

Combine like terms: 12m + -12m = 0
-128 + -39m = 28 + 0
-128 + -39m = 28

Add '128' to each side of the equation.
-128 + 128 + -39m = 28 + 128

Combine like terms: -128 + 128 = 0
0 + -39m = 28 + 128
-39m = 28 + 128

Combine like terms: 28 + 128 = 156
-39m = 156

Divide each side by '-39'.
m = -4

Simplifying
m = -4

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