2m-15=9m+20

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Solution for 2m-15=9m+20 equation:


Simplifying
2m + -15 = 9m + 20

Reorder the terms:
-15 + 2m = 9m + 20

Reorder the terms:
-15 + 2m = 20 + 9m

Solving
-15 + 2m = 20 + 9m

Solving for variable 'm'.

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

Add '-9m' to each side of the equation.
-15 + 2m + -9m = 20 + 9m + -9m

Combine like terms: 2m + -9m = -7m
-15 + -7m = 20 + 9m + -9m

Combine like terms: 9m + -9m = 0
-15 + -7m = 20 + 0
-15 + -7m = 20

Add '15' to each side of the equation.
-15 + 15 + -7m = 20 + 15

Combine like terms: -15 + 15 = 0
0 + -7m = 20 + 15
-7m = 20 + 15

Combine like terms: 20 + 15 = 35
-7m = 35

Divide each side by '-7'.
m = -5

Simplifying
m = -5

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