1/2(y-1)=4y

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Solution for 1/2(y-1)=4y equation: 


y in (-oo:+oo)

(1/2)*(y-1) = 4*y // - 4*y

(1/2)*(y-1)-(4*y) = 0

(1/2)*(y-1)-4*y = 0

1/2*(y-1)-4*y = 0

1/2*(y-1)-4*y = 0

-7/2*y-1/2 = 0

-7/2*y-1/2 = 0

-7/2*y-1/2 = 0 // + 1/2

-7/2*y = 1/2 // : -7/2

y = 1/2/(-7/2)

y = -1/7

y = -1/7

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