if you need to solve this problem through substitution, then we need to change the first equation because we need one of the equations to be y= or x=.
-x+y=4
+x +x
y=4+x
ok, so substitute the above equation into the y-value of the second equation.
2x-3(4+x) = -5
2x-12-3x = -5
-x-12 = -5
+12 +12
-x = 7
/-1 /-1
x = -7
Now, substitute the x-value into one of the equations from the given.
-x+y=4
-(-7)+y=4
7+y=4
-7 -7
y = -3
So, the answer is (-7,-3)
HOPE THIS HELPS!!!
