OpenStax, Elementary Algebra 2e §5.2 Solving Systems of Equations by Substitution · Exercise 38 · Algebra · Systems
Solving Systems of Equations by Substitution · Exercise 38
Translate to a system of equations and solve.
The sum of two numbers is 30. One number is 4 less than the other. Find the numbers.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Elementary Algebra 2e · §5.2 Solving Systems of Equations by Substitution · Exercise 38
Stuck? A gentle nudge
No hints for this one.
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.