



 
Hi Shawna, You have
The first thing that I notice about these three equations is that if you add all three together then on the left side you get
and on the right side
thus
Now subtract equation (2) from equation (1) to get x + y = 2 or
Then subtract equation (3) from equation (2) to get y + z = 3 or
Substitute equations (5) and (6) into equation (4) and solve for y. Penny  


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