(7x-5)/4=(x+9)/3

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Solution for (7x-5)/4=(x+9)/3 equation:


x in (-oo:+oo)

(7*x-5)/4 = (x+9)/3 // - (x+9)/3

(7*x-5)/4-((x+9)/3) = 0

(7*x-5)/4+(-1*(x+9))/3 = 0

(3*(7*x-5))/(3*4)+(-1*4*(x+9))/(3*4) = 0

3*(7*x-5)-1*4*(x+9) = 0

17*x-51 = 0

(17*x-51)/(3*4) = 0

(17*x-51)/(3*4) = 0 // * 3*4

17*x-51 = 0

17*x-51 = 0 // + 51

17*x = 51 // : 17

x = 51/17

x = 3

x = 3

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