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Katniss E.
Answers (1)
Let 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
