Math

3z + 6 = 9 + 7(z + 3) Solve for the unknown

Asked by AnneS2 on 06 Aug 06:29

Last updated by anonymous on 07 Aug 13:41

1 Answers

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Answered by CherieS on 07 Aug 13:41

3z + 6 = 9 + 7(z + 3)

3z + 6 = 9 + 7(z) (7)( + 3)

3z + 6 = 9+7z+21

3z + 6 = 7z+30

3z + 6-6 = 7z+30-6

3z=7z+24

3z-7z=7z+24-7z

-4z=24

-4z/-4=24/-4

z=-6