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

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


x in (-oo:+oo)

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

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

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

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

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

7*x-38 = 0

(7*x-38)/(2*9) = 0

(7*x-38)/(2*9) = 0 // * 2*9

7*x-38 = 0

7*x-38 = 0 // + 38

7*x = 38 // : 7

x = 38/7

x = 38/7

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