Math

Solve for the unknown 3(3 + 7z) = 345

Asked by AnneS2 on 28 Jul 09:02

Last updated by anonymous on 29 Jul 18:28

1 Answers

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Answered by CherieS on 29 Jul 18:28

3(3 + 7z) = 345

3(3 ) (3)(+ 7z) = 345

9+21z=345

9+21z-9=345-9

21z=336

21z/21=336/21

z=16