what should be subtracted from 7x/x2+x-12 to obtain (3/x-3) ?
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Answer
4/x+x-9
Step-by-step explanation:
Let number be n.
=>(7/x+x-12)-n=(3/x-3)
=>(7/x+x-12)-(3/x-3)=n
=>7/x+x-12-3/x+3=n
=>4/x+x-9=n
=>n=4/x+x-9 Ans.
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