1/2x=-20 - solution

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Solution for 1/2x=-20 equation:

x in (-oo:+oo)

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

(1/2)*x+20 = 0

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

1/2*x = -20 // : 1/2

x = -20/1/2

x = -40

x = -40

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