1.) 3x-4y=5
X+3y=5 coinciding, parallel or intersecting

2.) x+3y=-4
X+2y=-9 coinciding, parallel or intersecting
3.) 4x+4y=-12
4x+4y-9=0 coinciding, parallel or intersecting
4.) 3x-y=10
X+y=-2 coinciding, parallel or intersecting
5.) - x-y=9
5x-2y=-8 coinciding, parallel or intersecting​