\(\text{7,48:(y-31,72)=13,6 }\)
\(=>y-31,72=7,48:13,6\)
\(=>y=0,55+31,72=32,27\)
7,48 : ( y - 31,72 ) = 13,6
y - 31,72 = 7,48 : 13,6
y - 31,72 = 0,55
y = 0,55 + 31,72
y = 32,27
=> y - 31,72 = 7,48 : 13,6 = 0,55
=> y = 0,55 + 31,72 = 32,27
k mk nhna