Math

SOlve 7x - 10 + 3x = 80

Asked by AnneS2 12 years ago 6/8/2013 12:11 PM

Last updated by anonymous 12 years ago 6/9/2013 1:02 PM

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Answered by CherieS 12 years ago 6/9/2013 1:02 PM

7x - 10 + 3x = 80

10x - 10 = 80

10x - 10+10 = 80+10

10x=90

10x/10=90/10

x=9