решите 2,136(1,9-x)=7,12

((2136,2136(9-х))=7,12

2.136:(1.9-х)=7.122.136=7.12*(1.9-х)2.136=13.528-7.12*х2.136-13.528=-7.12*х-11.392=-7.12*хх=-11.392:(-7.12)х=1.6