\(125\%\div n+1^3_4=6,75\)
\(1,25\div n+1,75=6,75\)
\(1,25\div n=6,75-1,75\)
\(1,25\div n=5\)
\(n=1,25\div5\)
\(x=0,25\)
Chúc bạn học tốt
125% : n + \(\frac{13}{4}\) = 6,75
1,25 : n = 6,75 - \(\frac{13}{4}\) = 3,5
n = 1,25 : 3,5
n = \(\frac{5}{14}\)