20-7m=-4(1+m)

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Solution for 20-7m=-4(1+m) equation: 


Simplifying
20 + -7m = -4(1 + m)
20 + -7m = (1 * -4 + m * -4)
20 + -7m = (-4 + -4m)

Solving
20 + -7m = -4 + -4m

Solving for variable 'm'.

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

Add '4m' to each side of the equation.
20 + -7m + 4m = -4 + -4m + 4m

Combine like terms: -7m + 4m = -3m
20 + -3m = -4 + -4m + 4m

Combine like terms: -4m + 4m = 0
20 + -3m = -4 + 0
20 + -3m = -4

Add '-20' to each side of the equation.
20 + -20 + -3m = -4 + -20

Combine like terms: 20 + -20 = 0
0 + -3m = -4 + -20
-3m = -4 + -20

Combine like terms: -4 + -20 = -24
-3m = -24

Divide each side by '-3'.
m = 8

Simplifying
m = 8

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