1) х:1,2=1,3
x = 1,3•1,2
x = 1,56
2) 8/3-х = 20/4+х
-x-x = 20/4-8/3
-2x = (60-32)/12
-2x = 28/12
x = 28/(-24)
x = -7/6
x = -1 1/6
ответ: 1) 1,56; 2) -1 1/6
