-100=-5(4+8m)

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Solution for -100=-5(4+8m) equation:


Simplifying
-100 = -5(4 + 8m)
-100 = (4 * -5 + 8m * -5)
-100 = (-20 + -40m)

Solving
-100 = -20 + -40m

Solving for variable 'm'.

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

Add '40m' to each side of the equation.
-100 + 40m = -20 + -40m + 40m

Combine like terms: -40m + 40m = 0
-100 + 40m = -20 + 0
-100 + 40m = -20

Add '100' to each side of the equation.
-100 + 100 + 40m = -20 + 100

Combine like terms: -100 + 100 = 0
0 + 40m = -20 + 100
40m = -20 + 100

Combine like terms: -20 + 100 = 80
40m = 80

Divide each side by '40'.
m = 2

Simplifying
m = 2

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