1/2x+3=9 - solution

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Solution for 1/2x+3=9 equation:

x in (-oo:+oo)

(1/2)*x+3 = 9 // - 9

(1/2)*x-9+3 = 0

1/2*x-6 = 0 // + 6

1/2*x = 6 // : 1/2

x = 6/1/2

x = 12

x = 12

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