`C1` `\frac{2x-3}{5}` `=` `\frac{1-3x}{7}`
`C2` `\frac{-3}{3x+2}` `=` `\frac{2}{1-5x}`
`C3`\frac{-2x+1}{-3}` `=` `\frac{3x-5}{-4}`
Loga
Sinh Học lớp 12
