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I need help this is for tonight!!!
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I need help this is for tonight!!!

I need help this is for tonight!!!-example-1
User Stavros Zavrakas
by
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1 Answer

4 votes

Answer:

54

Explanation:

first find x:

21x-9=14x+12

21x=14x+21

7x=21

x=3

now substitute

21(3)-9

63-9=54

User Contactmatt
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