-15=-7m+4m+9

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Solution for -15=-7m+4m+9 equation: 


m in (-oo:+oo)

-15 = 4*m-7*m+9 // - 4*m-7*m+9

-(-7*m)-(4*m)-15-9 = 0

7*m-4*m-15-9 = 0

3*m-24 = 0 // + 24

3*m = 24 // : 3

m = 24/3

m = 8

m = 8

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