To solve by graphing, start by putting each equation into slope-intercept form, y = mx + b.
x - 3y = 3
x = 3y + 3
x - 3 = 3y
x/3 - 1 = y The intercept is -1. Put a point at (0, -1). The slope is 1/3. Go up one and right 3. Put a point. Draw line.
2x + 3x + 3y = -3
5x + 3y = -3
3y = -5x - 3
y = -5x/3 - 1 The intercepts is also -1. The slope is -5/3. Go down 5 and right 3. Put a point. Draw line.