5890-х•4=5390
4х=5890-5390
4х=500
х=500:4
х=125
157+х•6= 25705
6х=25705-157
6х=25548
х=25548:6
х=4258
5890-х•4=5390
4х=5890-5390
4х=500
х=500:4
х=125
157+х•6= 25705
6х=25705-157
6х=25548
х=25548:6
х=4258