Question 1163959
lori is 15 years older than carol. in 10 years, lori will be twice as old as carol. how old is lori now?
<pre>Let Lori's age be L
Then Carol's is: L - 15
We then get: L + 10 = 2(L - 15 + 10)
L + 10 = 2(L - 5)
L + 10 = 2L - 10
10 + 10 = 2L - L
Lori, or {{{highlight_green(matrix(1,4, L, is, 20, years-old))}}}