-20-5-7m=20-4m

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Solution for -20-5-7m=20-4m equation:


Simplifying
-20 + -5 + -7m = 20 + -4m

Combine like terms: -20 + -5 = -25
-25 + -7m = 20 + -4m

Solving
-25 + -7m = 20 + -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.
-25 + -7m + 4m = 20 + -4m + 4m

Combine like terms: -7m + 4m = -3m
-25 + -3m = 20 + -4m + 4m

Combine like terms: -4m + 4m = 0
-25 + -3m = 20 + 0
-25 + -3m = 20

Add '25' to each side of the equation.
-25 + 25 + -3m = 20 + 25

Combine like terms: -25 + 25 = 0
0 + -3m = 20 + 25
-3m = 20 + 25

Combine like terms: 20 + 25 = 45
-3m = 45

Divide each side by '-3'.
m = -15

Simplifying
m = -15

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