1) 2(11х-5)-17х =55
22x-10-17x=55
5x=55+10
5x=65
x=65:5
х=13
2) 5(8х+3)-12=83
40х+15-12=83
40х+3=83
40х=83-3
40х=80
х=80:40
х=2
3) 7(2х+ 9) +3х=114
14х+63+3х=114
17х+63=114
17х=114-63
17х=51
х=51:17
х=3
4) 3(4х+13)-25=74
12х+39-25=74
12х+14=74
12х=74-14
12х=60
х=60:12
х=5