1) 6х=28-х
6х+х=28
7х=28
х=28:7
х=4
2) 9х-26=30-5х
9х+5х=30+26
14х=56
х=56:14
3) 7-3х=6х-56
-3х-6х=-56-7
-9х=-63
х=-63:(-9)
х=7
1) 6х=28-х
6х+х=28
7х=28
х=28:7
х=4
2) 9х-26=30-5х
9х+5х=30+26
14х=56
х=56:14
х=4
3) 7-3х=6х-56
-3х-6х=-56-7
-9х=-63
х=-63:(-9)
х=7