-1+2m=-3m-21

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Solution for -1+2m=-3m-21 equation: 


m in (-oo:+oo)

2*m-1 = -3*m-21 // + -3*m-21

2*m-(-3*m)-1+21 = 0

2*m+3*m-1+21 = 0

5*m+20 = 0 // - 20

5*m = -20 // : 5

m = -20/5

m = -4

m = -4

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