(-1/2)x-20=50 - solution

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Solution for (-1/2)x-20=50 equation:

x in (-oo:+oo)

(-1/2)*x-20 = 50 // - 50

(-1/2)*x-50-20 = 0

-1/2*x-70 = 0 // + 70

-1/2*x = 70 // : -1/2

x = 70/(-1/2)

x = -140

x = -140

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