Question 891787
Add the equations to get


2x+y=1
x-y=3
------
3x+0y=4



So,


3x = 4


x = 4/3



Use this to find y


2x+y=1


2(4/3)+y=1


8/3+y = 1


y = 1 - 8/3


y = 3/3 - 8/3


y = -5/3


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The solutions are x = 4/3 and y = -5/3