(x-3)/5=(2x)/7

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Solution for (x-3)/5=(2x)/7 equation: 


x in (-oo:+oo)

(x-3)/5 = (2*x)/7 // - (2*x)/7

(x-3)/5-((2*x)/7) = 0

(x-3)/5+(-2/7)*x = 0

(x-3)/5+(-2*x)/7 = 0

(7*(x-3))/(5*7)+(-2*5*x)/(5*7) = 0

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

-3*x-21 = 0

(-3*x-21)/(5*7) = 0

(-3*x-21)/(5*7) = 0 // * 5*7

-3*x-21 = 0

-3*x-21 = 0 // + 21

-3*x = 21 // : -3

x = 21/(-3)

x = -7

x = -7

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