((m-15)/5)-((7m-14)/7)=3

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Solution for ((m-15)/5)-((7m-14)/7)=3 equation: 


m in (-oo:+oo)

(m-15)/5-((7*m-14)/7) = 3 // - 3

(m-15)/5-((7*m-14)/7)-3 = 0

(m-15)/5+(-1*(7*m-14))/7-3 = 0

(7*(m-15))/(5*7)+(-1*5*(7*m-14))/(5*7)+(-3*5*7)/(5*7) = 0

7*(m-15)-1*5*(7*m-14)-3*5*7 = 0

-28*m-105-35 = 0

-28*m-140 = 0

(-28*m-140)/(5*7) = 0

(-28*m-140)/(5*7) = 0 // * 5*7

-28*m-140 = 0

-28*m-140 = 0 // + 140

-28*m = 140 // : -28

m = 140/(-28)

m = -5

m = -5

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