Kate spent 1 more than Lauren, and together they spent 5.
Let k be the amount Kate spent, and l be the amount Lauren spent. We're given:
k = l + 1
k + l = 5
Substitute (1) into (2):
(l + 1) + l = 5
Group like terms
2l + 1 = 5
Typing this equation into our search engine, we get:
l = 2
Plug...