решите 2,136(1,9-x)=7,12

((2136,2136(9-х))=7,12

2.136:(1.9-х)=7.12
2.136=7.12*(1.9-х)
2.136=13.528-7.12*х
2.136-13.528=-7.12*х
-11.392=-7.12*х
х=-11.392:(-7.12)
х=1.6