OpenStax, Elementary Algebra 2e §5.3 Solve Systems of Equations by Elimination · Example 10 · Algebra · Systems

Solve Systems of Equations by Elimination · Example 10

For each system of linear equations decide whether it would be more convenient to solve it by substitution or elimination. Explain your answer.
ⓐ ${3 x + 8 y = 40 7 x - 4 y = - 32$ ⓑ ${5 x + 6 y = 12 y = \frac{2}{3} x - 1$

~5 minWritten answer · check your work with Lemma

OpenStax, Elementary Algebra 2e · §5.3 Solve Systems of Equations by Elimination · Example 10

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.