z/2+6=7

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Solution for z/2+6=7 equation: 


z in (-oo:+oo)

z/2+6 = 7 // - 7

z/2-7+6 = 0

1/2*z-1 = 0 // + 1

1/2*z = 1 // : 1/2

z = 1/1/2

z = 2

z = 2

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