MediumLinear systems

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §11.4 Matrices and Linear Equations, #20 · Linear Algebra · Linear systems

The equations … and … can be solved if ______

The equations $x - y = d_{1}$ and $9 x - 9 y = d_{2}$ can be solved if ______.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §11.4 Matrices and Linear Equations, #20

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