Help me please

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me