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January 29, 2015

January 29, 2015

Posted by **Josh** on Saturday, October 21, 2006 at 11:06am.

ap + door=480

4*ap + 5*door=2100

in the first equation, ap= 480-door

Put that into the second equation for ap, and then solve.

- word problem -
**Katniss E.**, Thursday, September 20, 2012 at 6:55pmLet x =the number of people who paid at the door

4(480-x)+5x=2100 Distribute

1920-4x+5x=2100 add like terms

1920-9x=2100

-1920-9x=2100-1920

-9x=180 Divide by nine

x=-20 pe0ple at the door

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