Math

Solve for the unknown 6 + 7z = 10 + 9z

Asked by AnneS2 12 years ago 7/22/2013 4:55 AM

Last updated by anonymous 12 years ago 7/24/2013 12:07 PM

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Answered by CherieS 12 years ago 7/24/2013 12:07 PM

6 + 7z = 10 + 9z

6 + 7z-7z = 10 + 9z-7z

6=10+2z

6-10=10-10+2z

-4=2z

-4/2=2z/2

-2=z