z/2+1=7z/2

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Solution for z/2+1=7z/2 equation: 


z in (-oo:+oo)

z/2+1 = (7*z)/2 // - (7*z)/2

z/2-((7*z)/2)+1 = 0

z/2+(-7/2)*z+1 = 0

1-3*z = 0 // - 1

-3*z = -1 // : -3

z = -1/(-3)

z = 1/3

z = 1/3

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