y+1=3x, y=3x-1,
2y=6x-2, y=3x-1, so the two equations are identical and there are many solutions given by the linear graph y=3x-1. The y-intercept is -1 and the x-intercept is ⅓. A line passing through these intercept represents all the values (all points on the line) satisfying the two given equations.