РЕШИ УРАВНЕНИЯ: 120 : x = 20

1. 120 : x = 20 -> x = 120 : 20 = 6 2. 490 - y = 280 -> y = 490 - 280 = 210 3. z * 19 = 95 -> z = 95 : 19 = 5 4. k : 7 = 11 -> k = 11 * 7 = 77 5. 32 + m = 46 -> m = 46 - 32 = 14 6. 83 + n = 100 -> n = 100 - 83 = 17 7. p * 18 = 36 -> p = 36 : 18 = 2 8. s : 15 = 2 -> s = 2 * 15 = 30 9. 3 * t = 300 -> t = 300 : 3 = 100 10. v : 18 = 5 -> v = 5 * 18 = 90 11. 950 - n = 480 -> n = 950 - 480 = 470 12. s * 16 = 48 -> s = 48 : 16 = 3 13. x * 60 = 420 -> x = 420 : 60 = 7 14. 60 : p = 3 -> p = 60 : 3 = 20 15. 51 - y = 36 -> y = 51 - 36 = 15 16. z * 9 = 900 -> z = 900 : 9 = 100 17. t : 40 = 6 -> t = 6 * 40 = 240 18. 76 : k = 4 -> k = 76 : 4 = 19 19. 3 * v = 51 -> v = 51 : 3 = 17 20. m : 7 = 13 -> m = 13 * 7 = 91 21. 19 * z = 57 -> z = 57 : 19 = 3 22. v * 3 = 45 -> v = 45 : 3 = 15 23. t + 110 = 580 -> t = 580 - 110 = 470 24. 43 - s = 15 -> s = 43 - 15 = 28 25. p : 80 = 10 -> p = 10 * 80 = 800 26. x * 70 = 350 -> x = 350 : 70 = 5 27. 6 * y = 78 -> y = 78 : 6 = 13 28. n : 19 = 2 -> n = 2 * 19 = 38 29. m - 80 = 17 -> m = 17 + 80 = 97 30. 55 + k = 70 -> k = 70 - 55 = 15