Odpowiedź :
15+x=49|-15
x=34
8x=64|:8
x=8
x-37=9|+37
x=46
5x=20|:5
x=4
37+x=59|-37
x=22
x+71=69|-71
x=-2
23-x=63|-23
-x=40
x=-40
x-2=30|+2
x=32
7x=56|:7
x=8
40-x=4|-40
-x=-36
x=36
46-x=16|-46
-x=-30
x=30
x-28=16|+28
x=34
napisalas 2 razy to samo
pod koniec
x=34
8x=64|:8
x=8
x-37=9|+37
x=46
5x=20|:5
x=4
37+x=59|-37
x=22
x+71=69|-71
x=-2
23-x=63|-23
-x=40
x=-40
x-2=30|+2
x=32
7x=56|:7
x=8
40-x=4|-40
-x=-36
x=36
46-x=16|-46
-x=-30
x=30
x-28=16|+28
x=34
napisalas 2 razy to samo
pod koniec