Math

Solve for unknown: 7z + 4 = 16 + 4z

Asked by AnneS2 12 years ago 9/20/2013 5:47 AM

Last updated by anonymous 12 years ago 9/21/2013 11:55 AM

1 Answers

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Answered by CherieS 12 years ago 9/21/2013 11:55 AM

7z + 4 = 16 + 4z

7z + 4-4 = 16-4 + 4z

7z=4z+12

7z-4z=4z-4z+12

3z=12

3z/3=12/3

z=4