8.42=z/3+7.42

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Solution for 8.42=z/3+7.42 equation: 


z in (-oo:+oo)

8.42 = z/3+7.42 // - z/3+7.42

8.42-(z/3)-7.42 = 0

1-1/3*z = 0 // - 1

-1/3*z = -1 // : -1/3

z = -1/(-1/3)

z = 3

z = 3

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