Linear Algebra - Get Strang at MIT

2x - y = 0

-x + 2y = 3


Matrix(A) * Vector(X) = Vector(B)

| 2 -1 | | x | = | 0 |
| -1 2 | | y | = | 3 |

More specific

x | 2 | + y | -1 | = | 0 |
| -1 | | 2 | | 3 |