1. 8 · (х - 7) = 1080 2. (k + 11): 23 = 27
3. 900 : (210 +х) =36
4. 40 + х : 70 = 54
5. 142 – (123 - х) + 14 =111
6. 67 – 36 : х = 55
7. 24 : (х +2) = 60 : 15
8. 17 + 6·(х - 5) = 47
9. 40 – 3 · (х + 2) = 10
10. 2 · (х - 12) +19 = 19
11. 63 : (2х - 1) = 21 : 3
12. 248 : (41 – 2х) = 8
13. 18 · (7х + 26) = 1854
14. 336:(5х+1)=6
15. 21· (5х+14)=2499