-4/7z=8/21

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Solution for -4/7z=8/21 equation: 


z in (-oo:+oo)

(-4/7)*z = 8/21 // - 8/21

(-4/7)*z-(8/21) = 0

(-4/7)*z-8/21 = 0

-4/7*z-8/21 = 0 // + 8/21

-4/7*z = 8/21 // : -4/7

z = 8/21/(-4/7)

z = -2/3

z = -2/3

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