Решите уравнения 1)52/63-x/63=29/72 2)(29/42-a)-13/42=11/42 3)15/17-(b-3/17)=6/17 4)29/43-(m+13/43)=5/43

1)  х/63 = 52/63 - 29/72
х/63 = 71/168
х = 71/168 * 63
х = 213/8 =26,625
2)  29/42-13/42 - а = 11/42
     16/42 - а = 11/42
      а = 16/42 - 11/42
      а = 5/42
3) 15/17 + 3/17 - b = 6/17
      18/17 - b  = 6/17
      b= 18/17-6/17
      b  = 12/17
4) 29/43 - 13/43 -m = 5/43
    16/43  - m = 5/43
m  = 16/43-5/43
m  = 11/43