9=z/7

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Solution for 9=z/7 equation:


z in (-oo:+oo)

9 = z/7 // - z/7

9-(z/7) = 0

9-1/7*z = 0 // - 9

-1/7*z = -9 // : -1/7

z = -9/(-1/7)

z = 63

z = 63

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