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