-7z-z=4/9

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Solution for -7z-z=4/9 equation: 


z in (-oo:+oo)

-7*z-z = 4/9 // - 4/9

-7*z-z-(4/9) = 0

-7*z-z-4/9 = 0

-8*z-4/9 = 0 // + 4/9

-8*z = 4/9 // : -8

z = 4/9/(-8)

z = -1/18

z = -1/18

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