Math

7 + 2x = 6x - 21

Asked by AnneS2 12 years ago 10/21/2013 7:32 AM

Last updated by anonymous 12 years ago 10/22/2013 3:07 PM

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Answered by CherieS 12 years ago 10/22/2013 3:07 PM

7 + 2x = 6x - 21

7 + 2x -2x= 6x-2x - 21

7=4x-21

7+21=4x-21+21

28=4x

28/4=4x/4

7=x