z/30=2/21

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Solution for z/30=2/21 equation: 


z in (-oo:+oo)

z/30 = 2/21 // - 2/21

z/30-(2/21) = 0

z/30-2/21 = 0

1/30*z-2/21 = 0 // + 2/21

1/30*z = 2/21 // : 1/30

z = 2/21/1/30

z = 20/7

z = 20/7

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