7y/4y=2/5

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Solution for 7y/4y=2/5 equation:


y in (-oo:+oo)

((7*y)/4)*y = 2/5 // - 2/5

((7*y)/4)*y-(2/5) = 0

((7*y)/4)*y-2/5 = 0

7/4*y^2 = 2/5 // : 7/4

y^2 = 8/35

y^2 = 8/35 // ^ 1/2

abs(y) = (8/35)^(1/2)

y = (8/35)^(1/2) or y = -(8/35)^(1/2)

y in { (8/35)^(1/2), -(8/35)^(1/2) }

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