Step-by-step explanation:
2000 <= (178 + S) + S
remember, they needed to collect at least 2000 cans.
S = the number of cans Shane collected.
the number of cans Abha collected is 178 more than S (the number of cans Shane collected).
and from there we get
2000 <= 178 + 2S
1822 <= 2S
911 <= S
so, the solution set is
S >= 911
and
Abha >= 1089
