## Algebra: A Combined Approach (4th Edition)

$\frac{1}{3}$x - y = 2 x - 3y = 6 to the second equation add 3y to both sides x = 6 + 3y substitude x to the first equation $\frac{1}{3}$ (6 +3y ) - y = 2 2 + y - y = 2 2 = 2 infinite number of solution