(2x-6)/9+4/7=(x+1)/7

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Solution for (2x-6)/9+4/7=(x+1)/7 equation: 


x in (-oo:+oo)

(2*x-6)/9+4/7 = (x+1)/7 // - (x+1)/7

(2*x-6)/9-((x+1)/7)+4/7 = 0

(2*x-6)/9+(-1*(x+1))/7+4/7 = 0

(7*(2*x-6))/(7*9)+(-1*9*(x+1))/(7*9)+(4*9)/(7*9) = 0

7*(2*x-6)-1*9*(x+1)+4*9 = 0

5*x-51+36 = 0

5*x-15 = 0

(5*x-15)/(7*9) = 0

(5*x-15)/(7*9) = 0 // * 7*9

5*x-15 = 0

5*x-15 = 0 // + 15

5*x = 15 // : 5

x = 15/5

x = 3

x = 3

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