?????????????? yu ever heer av the idea av put separater tween stuf that look all the same ??????????...how bout add komma or semikomms...... line 1: x+y=-1, or y=-x -1... line 2: -6x -8y=18, or 3x+4y=-9 ... line2...3x +4(-x-1)=-9... 2x -4x -4=-9... -2x=-9 +4=-5... x=5/2=2.5... y=-x-1=-2.5 -1 y=-3.5