2m+20=4m+9

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Solution for 2m+20=4m+9 equation:


Simplifying
2m + 20 = 4m + 9

Reorder the terms:
20 + 2m = 4m + 9

Reorder the terms:
20 + 2m = 9 + 4m

Solving
20 + 2m = 9 + 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 + 2m + -4m = 9 + 4m + -4m

Combine like terms: 2m + -4m = -2m
20 + -2m = 9 + 4m + -4m

Combine like terms: 4m + -4m = 0
20 + -2m = 9 + 0
20 + -2m = 9

Add '-20' to each side of the equation.
20 + -20 + -2m = 9 + -20

Combine like terms: 20 + -20 = 0
0 + -2m = 9 + -20
-2m = 9 + -20

Combine like terms: 9 + -20 = -11
-2m = -11

Divide each side by '-2'.
m = 5.5

Simplifying
m = 5.5

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