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For any number $x$, we are told that $x\&=7-x$ and $\&x = x -7$. What is the value of $\&(15\&)$?

 Mar 2, 2020
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\(x\&=7-x\)

 

\(\&x = x -7\)                         

 

What  is the  value of       \(\&(15\&)\)       ????

 

15&  =  7 - 15   =   - 8

 

And

 

&(15&)   = &(-8)   =  &x =  -8 - 7   =    

 

-15

 

 

cool cool cool

 Mar 2, 2020

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