Question 81821
QUESTION:


Solve the system by addition or substitution.
	–8x + 2y = 8
	y = 4 + 4x 


ANSWER:


Please check your question once again...
This system of equations cant solve using these two methods.
If you chose substitution methis....that will proceed like this...


–8x + 2y = 8------------------------(1)



y = 4 + 4x -------------------------(2)



In (2) we have value of  y = 4 + 4x


Substitute this value in (1)


==> –8x + 2(4 + 4x ) = 8



==> -8x + 2 * 4 + 2 * 4x = 8



==> -8x + 8 + 8x = 8



==> -8x + 8x + 8 = 8


==> 0 + 8 = 8

that is you cant find the value of x here.....



If your question is incorrrect...correct it and submit once again.



Regards.


Praseena.