SOLUTION: The equations of two lines are 7x-y=-1 and y=5x+3. What is the value of the y in the solutions for this system of linear equations?

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Question 851107: The equations of two lines are 7x-y=-1 and y=5x+3. What is the value of the y in the solutions for this system of linear equations?
Answer by ramkikk66(644)   (Show Source): You can put this solution on YOUR website!
The equations are  (1)
 (2)

Substituting for y from eqn (2) into eqn (1)



i.e. 
i.e.  or 
Therefore, 

Check: (1) 
(2)  Correct!

Solution:  and 

Hope this helps!

Cheers, Ramki.

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