Hi,

 What is the value of the y variable in the solution to the following system of equations?

5x + 3y = 7

3x - 5y = -23

eliminating the x variable by multiplying the 2nd EQ thru by -5/3

 5x + 3y = 7

-5x + 25/3y = -23*-5/3 + 21/3

        (34/3)y = 23*5/3 + 21/3

           34y = 115 + 21

             y = 136/34

             y = 4 

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