X+(x-y)*3-y если х=4139,=2028
X+(x-y)*3-y если x = 4139, y = 2028 , то 4139+(4139 - 2028) * 3 - 2028 = 8444 1) 4139 - 2028 = 2111 2) 2111*3=6333 3) 4139 + 6333 = 10472 4) 10472 - 2028 = 8444
X+3x-3y-y 4139+3(4139)-3(2028)-2028=16556-4056=12500