20-3m=9m-8m

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Solution for 20-3m=9m-8m equation:


Simplifying
20 + -3m = 9m + -8m

Combine like terms: 9m + -8m = 1m
20 + -3m = 1m

Solving
20 + -3m = 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 + -3m + -1m = 1m + -1m

Combine like terms: -3m + -1m = -4m
20 + -4m = 1m + -1m

Combine like terms: 1m + -1m = 0
20 + -4m = 0

Add '-20' to each side of the equation.
20 + -20 + -4m = 0 + -20

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

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

Divide each side by '-4'.
m = 5

Simplifying
m = 5

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