2(11х-5)-17х=55
22х-10-17х=55
22х-17х=55+10
5х=65
х=65:5
х=13
5(8х+3)-12=83
5(8х+3)=83+12
5(8х+3)=95
8х+3=95:5
8х+3=19
8х=19-3
8х=16
х=16:8
х=2
7(2х+9)+3х=114
14х+63+3х=114
14х+3х=114-63
17х=51
х=51:17
х=3
3(4х+13)-25=74
3(4х+13)=74+25
3(4х+13)=99
4х+13=99:3
4х+13=33
4х=33-13
4х=20
х=20:4
х=5