30-1/2x=40

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Solution for 30-1/2x=40 equation: 


x in (-oo:+oo)

30-((1/2)*x) = 40 // - 40

30-((1/2)*x)-40 = 0

(-1/2)*x-40+30 = 0

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

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

x = 10/(-1/2)

x = -20

x = -20

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