7z/2=9-3z

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Solution for 7z/2=9-3z equation: 


z in (-oo:+oo)

(7*z)/2 = 9-(3*z) // - 9-(3*z)

(7*z)/2+3*z-9 = 0

13/2*z-9 = 0 // + 9

13/2*z = 9 // : 13/2

z = 9/13/2

z = 18/13

z = 18/13

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