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If sqrt(x) + sqrt(y) = 13 and 4x + 9y = 793, what is the value of x?

 Jul 23, 2022
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By a little inspection.....let x = 16 and y=  81

 

sqrt (16) + sqrt (81)  =

 

4 +  9 =   13

 

And

 

4 (16) + 9(81)  = 793

 

So....x =  16

 

 

cool cool cool

 Jul 23, 2022

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