90 degree angles -Depends on how large your triangle is
8x + 4y = 20
4y = 20 - 8x
y = 5 - 2x
Here, Equations are: x - y = 6
y = x - 4
x - y = 4
Here, we can see L.H.S of both equations are equal but R.H.S is unequal so the system has no solution at all.
In short, Your Answer would be "No Solution"
Hope this helps!
