solve the following equation 3 x minus Y is equal to 3 and x minus Y is equal to 4
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3x-y=3
-x-y=4
(-) (+)=(-)
2x=-1
x=-1/2
Substitute x=-1/2 in x-y=4
-1/2-y=4
y=4+1/2
y=9/2
[x=-1/2,y=9/2]
-x-y=4
(-) (+)=(-)
2x=-1
x=-1/2
Substitute x=-1/2 in x-y=4
-1/2-y=4
y=4+1/2
y=9/2
[x=-1/2,y=9/2]
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