Question 221474
L=lea
J=john
S=sue


"If Leah is 6 years older than Sue" ---> L=S+6 --> S=L-6
" John is 5 years older than Leah" --> J=L+5
"total of their ages is 41" -->  L+J+S=41



L+J+S=41

L+(L+5)+(L-6)=41

3L-1=41

3L=42

L=14 <---- Leah is 14

S=L-6=14-6=8 <---- Sue is 8