3x+2y+7=03 x + 2 y+7=03x+2y+7=0
3x+2y−7=03 x+2 y-7=03x+2y−7=0
2x−−3y+4=02 x--3 y+4=02x−−3y+4=0
2x−3y−4=02 x-3 y-4=02x−3y−4=0