(2^-17 * 2^12) / 2^-9 = (2^-5) / 2^-9 = 2^4 = 16
5^34+6^53-12^0
5^34=..........................5
5^1=5
5^2=.25
5^3=..25
5^4=..25
5^5=....25
6^1=6
6^2=.36
6^3=..16
6^4=...96
6^5=....76
6^6=...........56
6^7=.............36
6^8=,..............16
6^9=...............96
6^10=...............76
6^11=.................56
6^12=..................36
6^13=.....................16
6^53=....................16
6^53=(6^5)10×6^3=.................16
12^0=1
5^34+6^53-12^0=............25+.................16-1=............41-1=.....................................40
7-12х=3х+22
-12х-3х=22-7
-15х=15
х=-15:15
х=-1
Надеюсь понятно. Второе чуть позже