1/2-7/2z=5/2

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Solution for 1/2-7/2z=5/2 equation: 


z in (-oo:+oo)

1/2-((7/2)*z) = 5/2 // - 5/2

1/2-((7/2)*z)-(5/2) = 0

(-7/2)*z+1/2-5/2 = 0

-7/2*z-2 = 0 // + 2

-7/2*z = 2 // : -7/2

z = 2/(-7/2)

z = -4/7

z = -4/7

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