5x-2=13
x=
x-2y=15
x=4y+3
2x+y=20
y=6x+4
sqrt i
-3x + 12 / -3x
x+y=18
x=y
simplfiy -3x + 12 / -3x
2x-5=11
simplfiy using rational expression -3x + 12 / -3x
simplfiy using rational expression -3x + 12 over -3x
