3=7-3/7z

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


z in (-oo:+oo)

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

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

3/7*z-4 = 0 // + 4

3/7*z = 4 // : 3/7

z = 4/3/7

z = 28/3

z = 28/3

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