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cody spent $144 on shirts. fancy shirts cost $23 and plain shirts cost $13. if he bought a total of 8 then how many of each kind did he buy?

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jinc0930
let's say he bought x fancy shirts and y plain shirts
x+y=8→y=8-x
23x+13y=144

23x+13(8-x)=144
23x+104-13x=144
10x=40
x=4

he bought 4 fancy shirts

8-4=4

he bought 4 plain shirts

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