найди х:8/9=0,2х/0,45;18,2/5,6=19,5/4х;6/7=3,5х/24,5

0.45х=0.2*98
0.45х=210*98
0.45х=940
х=940*10045
х=12=0.5

18.2*4х=19.5*5.6
72.8х=109.2
х=109.2:72.8
х=1.5

6*24.5=3.5х*7
147=24.5х
х=147:24.5
х=6