( 5 1/6 - x ) * 2,7 - 1 3/14 = 3 2/7
( 5 1/6 - x ) * 2,7 = 3 4/14 + 1 3/14
5 1/6 - x = 4 1/2 : 2,7
5 1/6 - x = 9/2 : 27/10
5 1/6 - 5/3 = x
x = 5 1/6 - 1 4/6
x = 4 7/6 - 1 4/6
x = 3 1/2
6,4:0,4=16 - 40% от числа m
16:0.4=<em>40 число m</em>
Д)4,2p-p=5.12
3.2p=5.12
p=1.6
е) 8.2t-4.4t=38.38
3.8t=38.38
t=10.1
з) 9k-8.67k=0.6699
0.33k=0.6699
k=2.03