Question

One number is 1 less than a second number. Twice the second number is 19 less than 5 times the first. Find the two numbers.

Answer 1

Sorry, I should have clarified. I'm working on solving systems of linear equations by the substitution method.

Answer 2

One number is 1 less than a second number" ___ f = s - 1

"Twice the second number is 19 less than 5 times the first" ___ 2s = 5f - 19

substituting the value of f ___ 2s = 5(s - 1) - 19

2s = 5s - 5 - 19
24 = 3s
24/3 = s
s=8
f = (8) - 1 = 7