20+1/2x=-11 - solution

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Solution for 20+1/2x=-11 equation:

x in (-oo:+oo)

(1/2)*x+20 = -11 // + 11

(1/2)*x+11+20 = 0

1/2*x+31 = 0 // - 31

1/2*x = -31 // : 1/2

x = -31/1/2

x = -62

x = -62

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