y/2-4y/5=9/10

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Solution for y/2-4y/5=9/10 equation: 


y in (-oo:+oo)

y/2-((4*y)/5) = 9/10 // - 9/10

y/2-((4*y)/5)-(9/10) = 0

y/2+(-4/5)*y-9/10 = 0

-3/10*y-9/10 = 0 // + 9/10

-3/10*y = 9/10 // : -3/10

y = 9/10/(-3/10)

y = -3

y = -3

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