Ответы
2.018 * 145 - х = 192.117 2.018 * 145 = 292.610
292.610 - х = 192.117 292.610 - 192.117 = 100.493
х = 292.610 - 192.117
х = 100.493
----------------------------------------------
2.018 * 145 - 100.493 = 192.117 2.018 * 145 = 292.610
292.610 - 100.493 = 192.117 292.610 - 100.493 = 192.117
192.177 = 192.177
==========================================================
4.125 * 217 + х = 921.713 4.125 * 217 = 895.125
895.125 + х = 921.713 921.713 - 895.125 = 26.588
х = 921.713 - 895.125
х = 26.588
-------------------------------------------
4.125 * 217 + 26.588 = 921.713 4.125 * 217 = 895.125
895.125 + 26.588 = 921.713 895.125 + 29.588 = 921.713
921.713 = 928.713
Проверено на калькуляторе