13=-2m+3m+9

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Solution for 13=-2m+3m+9 equation:


m in (-oo:+oo)

13 = 3*m-2*m+9 // - 3*m-2*m+9

13-(-2*m)-(3*m)-9 = 0

2*m-3*m-9+13 = 0

4-m = 0 // - 4

-m = -4 // * -1

m = 4

m = 4

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