Question

помогите решить уравнения

Answer 1

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Answer 2

         25
-------------------- = 4
 2/3х + 0,25

4 * (2/3х + 0,25) = 25
8/3х + 1 = 25
8/3х = 25 - 1
8/3х = 24
х = 24 : 8/3
х = 24 : 8 * 3
х = 9
______________________________

      36
------------- = 8
7 - 5/6х

8 * (7 - 5/6х) = 36
56 - 20/3х = 36
20/3х = 56 - 36
20/3х = 20
х = 20 : 20/3
х = 3
____________________________

       27
------------------- = 4,5
5 1/3 + 1/9х

       27
------------------- = 45/10
5 1/3 + 1/9х

       27
------------------- = 9/2
16/3 + 1/9х

9 * (16/3 + 1/9х) = 27 * 2
48 + х = 54
х = 54 - 48
х = 6