Linear Algebra and Its Applications · Problem 1.3.30

Matrices and Gaussian Elimination — Gilbert Strang

Mathematics · gaussian-elimination

Problem

Use elimination to solve

\begin{array}{lll} u + v + w = 6 & \quad & u + v + w = 7 \\ u + 2v + 2w = 11 & \text{and} & u + 2v + 2w = 10 \\ 2u + 3v - 4w = 3 & & 2u + 3v - 4w = 3. \end{array}