Answer :
[tex]x-number\\x\neq 0\\ \\
4 \cdot \frac1x=3+\frac52 \cdot \frac1x\\
\frac4x=3+\frac5{2x}\ / \cdot 2x\\
8=6x+5\\
6x=8-5\\
6x=3\ /:6\\
x=\frac36=\frac12
[/tex]
1)
4·1/n = 3 + 5/2n
²⁾4/n = ²ⁿ⁾3 + 5/2n
8 = 6n + 5
6n = 8 - 5
6n = 3
n = 3⁽²/6
n = 1/2