2(11x-5)-17x=55
5(8x+3)-12=83

1)2(11х-5)-17х=5522х-10-17х=555х=55-105х=65х=65:5х=132)5(8х+3)-12=8340х+15-12=8340х+3=8340х=83-340х=80х=80:40х=2