40=13+5m-2m

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Solution for 40=13+5m-2m equation:


Simplifying
40 = 13 + 5m + -2m

Combine like terms: 5m + -2m = 3m
40 = 13 + 3m

Solving
40 = 13 + 3m

Solving for variable 'm'.

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

Add '-3m' to each side of the equation.
40 + -3m = 13 + 3m + -3m

Combine like terms: 3m + -3m = 0
40 + -3m = 13 + 0
40 + -3m = 13

Add '-40' to each side of the equation.
40 + -40 + -3m = 13 + -40

Combine like terms: 40 + -40 = 0
0 + -3m = 13 + -40
-3m = 13 + -40

Combine like terms: 13 + -40 = -27
-3m = -27

Divide each side by '-3'.
m = 9

Simplifying
m = 9

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