4=-(1-7m)-9m

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Solution for 4=-(1-7m)-9m equation:


Simplifying
4 = -1(1 + -7m) + -9m
4 = (1 * -1 + -7m * -1) + -9m
4 = (-1 + 7m) + -9m

Combine like terms: 7m + -9m = -2m
4 = -1 + -2m

Solving
4 = -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.
4 + 2m = -1 + -2m + 2m

Combine like terms: -2m + 2m = 0
4 + 2m = -1 + 0
4 + 2m = -1

Add '-4' to each side of the equation.
4 + -4 + 2m = -1 + -4

Combine like terms: 4 + -4 = 0
0 + 2m = -1 + -4
2m = -1 + -4

Combine like terms: -1 + -4 = -5
2m = -5

Divide each side by '2'.
m = -2.5

Simplifying
m = -2.5

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