Answer:
No
Step-by-step explanation:
3x-5= 4+2x
Or, x=4+5
x=9
we must do the following:
0
1
2
3
4
5
6
7
8
9
select the major, the minor and the half and add, like this:

therefore:

also:

the groups are:
(9,0,1,5); (7,6,2); (8,4,3)
Number of proper subsets = 2^number of elements- 1
= 2^n - 1
No of elements = 4
2^4-1 = 16-1 = 15
It does. Because 6+(-1) equals 5 and so does 19-14