what are the answers to the following questions?

Question

6n+16=26, n=?
8a-6=18 a=?
-16-10n=24 n=?
18+14z=-6 z=?
etc? show work please?

8a-6=18 a=?
8x?-6?18
8x3-6=18
the answer is 3

6n+16=26
6n=26-16
6n=10
10/6=1.6
n=1.6

-16-10n=24
10n=24+16
10n=40
40/10=4
n=4

18+14z=-6
14z=-6-18
14z=-24
z=0.07