Question

If y2-×=7, what is the positive value?

Answer 1

Answer:

I don't know (sorry)

oydyostkzkfzgkxkgxktxkyxktxktxkyxkyxkyxkyxkyxkyxyhyxlyxkydkyskyxgmxtkxktskyztlxkgxgxmvxgjshrwhrwjtdlyflhxngzrhajrsluflifjgzhfakyfgmgzhrakydluf

Answer 2

Step-by-step explanation:

Given,

3y2+7y2+4=21

or, 2y2+8=3y2+7

or, y2=1

or, y=±1.

So the positive value of y is 1