2/5=3x/7

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Solution for 2/5=3x/7 equation: 


x in (-oo:+oo)

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

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

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

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

-3/7*x = -2/5 // : -3/7

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

x = 14/15

x = 14/15

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