-7m-2(5+5m)=-129

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Solution for -7m-2(5+5m)=-129 equation:


Simplifying
-7m + -2(5 + 5m) = -129
-7m + (5 * -2 + 5m * -2) = -129
-7m + (-10 + -10m) = -129

Reorder the terms:
-10 + -7m + -10m = -129

Combine like terms: -7m + -10m = -17m
-10 + -17m = -129

Solving
-10 + -17m = -129

Solving for variable 'm'.

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

Add '10' to each side of the equation.
-10 + 10 + -17m = -129 + 10

Combine like terms: -10 + 10 = 0
0 + -17m = -129 + 10
-17m = -129 + 10

Combine like terms: -129 + 10 = -119
-17m = -119

Divide each side by '-17'.
m = 7

Simplifying
m = 7

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