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posted by peter on Monday, April 11, 2011 at 12:14am.

given;n+8(n+20)=110 1;n+8n+20=110 2;9n+20=110 3;9n=110-20 49n=90

n+8n+60=110 n+8n=110-60 9n=50 n=50/9

you forgot to multiply 20 by 8: n+8(n+20)=110 must be n+8n+160=110 but you're on the right track~ :)

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