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5000a+119000
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5000a+119000
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4000\times 11+2500\left(30+2a\right)
Subtract 9 from 20 to get 11.
44000+2500\left(30+2a\right)
Multiply 4000 and 11 to get 44000.
44000+75000+5000a
Use the distributive property to multiply 2500 by 30+2a.
119000+5000a
Add 44000 and 75000 to get 119000.
4000\times 11+2500\left(30+2a\right)
Subtract 9 from 20 to get 11.
44000+2500\left(30+2a\right)
Multiply 4000 and 11 to get 44000.
44000+75000+5000a
Use the distributive property to multiply 2500 by 30+2a.
119000+5000a
Add 44000 and 75000 to get 119000.
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