Question 1200241
Look at each set, and think carefully.


#1
Multiply E1 by 3.  Multiply E2 by 2.
Add.  Find x.
Multiply E1 by 2.  
Subtract.  Find y.


#2
Multiply E1 by 3.  Multiply E2 by 4.
Add.  Find x.
Multiply E1 by 2.  Multiply E2 by 3.
Subtract.  Find y.


#3
You should understand what's going on by now.
Handle this one correctly, and find x=8, y=2.