Math

Solve for the unknown 322 = 7(1 + 3x)

Asked by AnneS2 12 years ago 7/22/2013 4:56 AM

Last updated by anonymous 12 years ago 7/24/2013 12:03 PM

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Answered by CherieS 12 years ago 7/24/2013 12:03 PM

322 = 7(1 + 3x)

322 = 7(1) (7)( + 3x)

322=7+21x

322-7=7-7+21x

315=21x

315/21=21x/21

15=x