a) $\frac{3}{7}$ . 5 -9 =$\frac{3x+52}{x}$ +16$\frac{1}{7}$
b) (x+$\frac{1}{2}$)($\frac{2}{3}$ -2x)=0
c) 6$\frac{1}{4}$x-5$\frac{1}{2}$x = 25%
d) $\frac{8}{9}$x - $\frac{2}{3}$ = $\frac{1}{3}$x + 1$\frac{1}{3}$
Loga
Sinh Học lớp 12
