-7m-9=4m-20

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Solution for -7m-9=4m-20 equation: 


m in (-oo:+oo)

-7*m-9 = 4*m-20 // - 4*m-20

20-7*m-(4*m)-9 = 0

20-7*m-4*m-9 = 0

11-11*m = 0 // - 11

-11*m = -11 // : -11

m = -11/(-11)

m = 1

m = 1

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