z/2+3=9-z/2 - solution

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Solution for z/2+3=9-z/2 equation:

z in (-oo:+oo)

z/2+3 = 9-(z/2) // - 9-(z/2)

z/2+z/2-9+3 = 0

z-6 = 0 // + 6

z = 6

z = 6

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