OpenStax, Algebra and Trigonometry 2e §11.8 Solving Systems with Cramer's Rule · Example 10 · Linear Algebra · Determinants

Using Cramer’s Rule and Determinant Properties to Solve a System

Find the solution to the given 3 × 3 system.

$2 x + 4 y + 4 z = 2 3 x + 7 y + 7 z = - 5 x + 2 y + 2 z = 4 (1) (2) (3)$

~5 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §11.8 Solving Systems with Cramer's Rule · Example 10

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.