1) 1376:(34-x) = 861376 = 86 * (34-x)1376 = 2924 - 86x-86x = -1548x = 18
2) 9680:(x+219) = 169680 = 16 * (x+219)9680 = 16x + 350416x = 6176x = 386
3) (x-57):29 = 205x-57 = 29*205x-57 = 5945x = 6002
4) (x-72)*9 = 9279(x-72) = 9279x - 648 = 9279x = 1575x = 175
Итак, x = 18, 386, 6002, 175.
1) 1376:(34-x) = 86
1376 = 86 * (34-x)
1376 = 2924 - 86x
-86x = -1548
x = 18
2) 9680:(x+219) = 16
9680 = 16 * (x+219)
9680 = 16x + 3504
16x = 6176
x = 386
3) (x-57):29 = 205
x-57 = 29*205
x-57 = 5945
x = 6002
4) (x-72)*9 = 927
9(x-72) = 927
9x - 648 = 927
9x = 1575
x = 175
Итак, x = 18, 386, 6002, 175.