4(2m+5)=-(-m+15)

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Solution for 4(2m+5)=-(-m+15) equation:


Simplifying
4(2m + 5) = -1(-1m + 15)

Reorder the terms:
4(5 + 2m) = -1(-1m + 15)
(5 * 4 + 2m * 4) = -1(-1m + 15)
(20 + 8m) = -1(-1m + 15)

Reorder the terms:
20 + 8m = -1(15 + -1m)
20 + 8m = (15 * -1 + -1m * -1)
20 + 8m = (-15 + 1m)

Solving
20 + 8m = -15 + 1m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
20 + 8m + -1m = -15 + 1m + -1m

Combine like terms: 8m + -1m = 7m
20 + 7m = -15 + 1m + -1m

Combine like terms: 1m + -1m = 0
20 + 7m = -15 + 0
20 + 7m = -15

Add '-20' to each side of the equation.
20 + -20 + 7m = -15 + -20

Combine like terms: 20 + -20 = 0
0 + 7m = -15 + -20
7m = -15 + -20

Combine like terms: -15 + -20 = -35
7m = -35

Divide each side by '7'.
m = -5

Simplifying
m = -5

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