9) Sondan uning \(\frac{1}{7}\) qismi ayirilsa, 168 hosil bo‘ladi. Bu sonni toping.

Sonni \(x\) deb olamiz: \(x-\frac{x}{7}=168\).

\(\frac{6x}{7}=168\), bundan \(x=168\cdot\frac{7}{6}=196\).

Javob: 196.