-x/2+20=12

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Solution for -x/2+20=12 equation: 


x in (-oo:+oo)

20-x/2 = 12 // - 12

20-x/2-12 = 0

8-1/2*x = 0 // - 8

-1/2*x = -8 // : -1/2

x = -8/(-1/2)

x = 16

x = 16

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