3(x-5)/2=4x/5

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Solution for 3(x-5)/2=4x/5 equation:


x in (-oo:+oo)

(3*(x-5))/2 = (4*x)/5 // - (4*x)/5

(3*(x-5))/2-((4*x)/5) = 0

(3*(x-5))/2+(-4/5)*x = 0

(3*(x-5))/2+(-4*x)/5 = 0

(3*5*(x-5))/(2*5)+(-4*2*x)/(2*5) = 0

3*5*(x-5)-4*2*x = 0

7*x-75 = 0

(7*x-75)/(2*5) = 0

(7*x-75)/(2*5) = 0 // * 2*5

7*x-75 = 0

7*x-75 = 0 // + 75

7*x = 75 // : 7

x = 75/7

x = 75/7

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