\(72:x=20\)
\(x=72:20\)
\(x=3,6\)
\(57:x=3,8\)
\(x=57:3,8\)
\(x=15\)
\(24:x=4,8\)
\(x=24:4,8\)
\(x=5\)
\(x\times10=8,5\)
\(x=8,5:10\)
\(x=0,85\)
72 : \(\chi\) = 20
\(\chi\) = 72 : 20
\(\chi\) = 3,6
57 :\(\chi\) = 3,8
\(\chi\) = 57 : 3,8
\(\chi\) = 15
24 :\(\chi\) = 4,8
\(\chi\) = 24 : 4,8
\(\chi\) = 5
\(\chi\)x 10 = 8,5
\(\chi\) = 8,5 : 10
\(\chi\) = 0,85