А/8<span>>17/8
a/8</span><span><2*3/8
В-дь: а</span>>17,а<span><6</span>
375 376 377 378 379 381 382 383 384
Х + (х +4) = 22
х + х + 4 = 22
2х + 4 = 22
2х = 22 - 4
2х = 18
х = 18:2
х = 9
---------------------
9 + (9+4) = 22
9 + 13 = 22
22 = 22
(х-7) + х = 33
х - 7 + х = 33
2х - 7 = 33
2х = 33 + 7
2х = 40
х = 40:2
х = 20
--------------------------
(20 - 7) + 20 = 33
13 + 20 = 33
33 = 33
х + (-1) = 40
х - 1= 40
х = 40 + 1
х = 41
----------------------
41 + (-1) = 40
40 = 40