-1/2y-3=7

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Solution for -1/2y-3=7 equation: 


y in (-oo:+oo)

(-1/2)*y-3 = 7 // - 7

(-1/2)*y-7-3 = 0

-1/2*y-10 = 0 // + 10

-1/2*y = 10 // : -1/2

y = 10/(-1/2)

y = -20

y = -20

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