1/2*x-3=2y

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Solution for 1/2*x-3=2y equation: 


x in (-oo:+oo)

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

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

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

1/2*x-2*y-3 = 0 // + -2*y-3

1/2*x = -(-2*y-3) // : 1/2

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

x = 2*(3-(-2*y))

x = 2*(3-(-2*y))

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