21-z/3=5

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Solution for 21-z/3=5 equation: 


z in (-oo:+oo)

21-(z/3) = 5 // - 5

21-(z/3)-5 = 0

16-1/3*z = 0 // - 16

-1/3*z = -16 // : -1/3

z = -16/(-1/3)

z = 48

z = 48

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