x-1/2y=-20 - solution

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Solution for x-1/2y=-20 equation:

x in (-oo:+oo)

x-((1/2)*y) = -20 // + 20

x-((1/2)*y)+20 = 0

x+(-1/2)*y+20 = 0

x-1/2*y+20 = 0 // - 20-1/2*y

x = -(20-1/2*y)

x = -(20-1/2*y)

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