solve the system of linear equations
1/3x-2/9y=2/9
4/5x+3/4y=-3/4
9 * (1/3 x - 2/9 y) = 2/9 * 9 20 * (4/5 x + 3/4 y) = -3/4 * 20
3x - 2y = 2 16x + 15y = -15
15 * (3x - 2y) = 2 * 15 2 * (16x + 15y) = -15 * 2
45x - 30y = 30 32x + 30y = -30
45x - 30y = 30
+(32x + 30y = -30)
---------------------------
77x = 0
x = 0 <<<<<<<<<<<<<<
1/3 x - 2/9 y = 2/9
1/3(0) - 2/9 y = 2/9
0 - 2/9 y = 2/9
-2/9 y = 2/9
y = -1 <<<<<<<<<<<<<<