Math

5x + 7 + 7x = 91

Asked by AnneS2 12 years ago 5/30/2013 4:58 AM

Last updated by anonymous 12 years ago 5/31/2013 12:44 PM

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Answered by CherieS 12 years ago 5/31/2013 12:44 PM

5x + 7 + 7x = 91

12x + 7 = 91

12x + 7 -7= 91-7

12x=84

12x/12=84/12

x=7