Math

Solve for unknown: 2z + 5 + 6z = 21

Asked by AnneS2 12 years ago 9/20/2013 5:46 AM

Last updated by anonymous 12 years ago 9/21/2013 11:59 AM

1 Answers

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Answered by CherieS 12 years ago 9/21/2013 11:59 AM

2z + 5 + 6z = 21

5 + 8z = 21

5 + 8z-5 = 21-5

8z=16

8z/8=16/8

z=2