Answer:
subtract the area of the rectangle from the area of the triangle
12.23
0
3.6
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Here: 6y = 6x + 12
6y - 6x = 12
Divide by 6,
y - x = 2
Which is nothing but first equation!
In short, Your Answer would be: "Infinitely Many solutions"
[ As L.H.S = R.H.S ]
Hope this helps!