-6(a+1)=2(1-3a)-8 why is the answer for the solution to the equation All real number

Answer/explanation:

Suppose S1 is the number of patients above 35years receiving medical treatment, and S2 is the number of patients below 35 years receiving medical.

then, S1 not in S2 simply means patients that are not receiving medical treatment.

And If M1 < M2, it means a lower number of patients above 35years than the patients below 35years receive medical treatment.