You can put this solution on YOUR website! 2x + y = 17
y + z = 6
x – z= 7 --> x = z+7
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Sub for x in the 1st eqn
2x + y = 17
2(z+7) + y = 17
2z + y = 3
y + 2z = 3
y + z = 6
---------------- Subtract
z = -3
--
--> y = 9
Sub and solve for x.
