1500x + 2000(x-16) = 66000

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1500x + 2000(x-16) = 66000
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1500x + 2000(x-16) = 66000
1500x + 2000(x-16) = 66000

1500x + 2000(x-16) = 66000
1500x + 2000(x-16) = 66000
1500x+2000x-32000=66000
3500x=66000+32000
3500x=98000
x=28