(12/7, 9/7)
Since y = -x + 3, substitute it into the first equation.
-x + 3 = 5/2x - 3
Now add x and subtract 3 from both sides.
0 = 7/2x - 6
Now add 6 on both sides.
6 = 7/2x
Now divide by 7/2 on both sides.
12/7 = x
Now, just substitute x into the second equation.
y = -12/7 + 3
y = -12/7 + 21/7
y = 9/7
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