Do n \(\in N\Rightarrow n+4\in N\)
Nguyên Đinh Huynh Ronaldo sai
1. \(\dfrac{16.17-5}{16.16-1}:\left(x-\dfrac{2}{3}\right)=\dfrac{1}{3}\)
<=> \(\dfrac{272-5}{256-1}:\left(x-\dfrac{2}{3}\right)=\dfrac{1}{3}\)
<=> \(\dfrac{267}{255}:\left(x-\dfrac{2}{3}\right)=\dfrac{1}{3}\)
<=> x - \(\dfrac{2}{3}=\dfrac{267}{85}\)
<=> x = \(\dfrac{971}{255}\)
@Triều Nguyễn Quốc
chtt nha bạn tick cho mk nha
bedroom
@miyuki
d, \(\dfrac{3}{2}\left(x-\dfrac{5}{3}\right)-\dfrac{7}{5}=x+1\)
<=> \(\dfrac{3}{2}x-\dfrac{3}{2}.\dfrac{5}{3}-\dfrac{7}{5}=x+1\)
<=> \(\dfrac{3}{2}x-\dfrac{5}{2}-\dfrac{7}{5}=x+1\)
<=> \(\dfrac{3}{2}x-\dfrac{39}{10}=x+1\)
<=> \(\dfrac{3}{2}x-x=1+\dfrac{39}{10}\)
<=> \(\dfrac{1}{2}x=\dfrac{49}{10}\)
<=> x = \(\dfrac{49}{5}\)
@Nguyễn Trà My