Lemma
MediumSystems
OpenStax, Algebra and Trigonometry 2e §11.1 Systems of Linear Equations: Two Variables · Exercise 78 · Algebra · Systems

Systems of Linear Equations: Two Variables · Exercise 78

Use a system of linear equations with two variables and two equations to solve.

Blu-rays cost $5.96 more than regular DVDs at All Bets Are Off Electronics. How much would 6 Blu-rays and 2 DVDs cost if 5 Blu-rays and 2 DVDs cost $127.73?

Its source prints no answer for this problem, so there's nothing to check against.

~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §11.1 Systems of Linear Equations: Two Variables · Exercise 78

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.