7/3z-7-z/3z

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Solution for 7/3z-7-z/3z equation: 


z in (-oo:+oo)

(7/3)*z-((z/3)*z)-7 = 0

(-1/3)*z^2+(7/3)*z-7 = 0

7/3*z-1/3*z^2-7 = 0

DELTA = (7/3)^2-(-7*(-1/3)*4)

DELTA = -35/9

DELTA < 0

z belongs to the empty set

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