\(\left(2,8x-32\right):\frac{2}{3}=-90\)
\(2,8x-32=-90.\frac{2}{3}=\frac{-90.2}{3}=\frac{-30.2}{1}=-60\)
\(\frac{14}{5}x=-60+32=-28\)
\(x=-28:\frac{14}{5}=-28.\frac{5}{14}=\frac{-28.5}{14}=\frac{-2.5}{1}=-10\)
(2,8X-32):2/3=-90
2,8X -32=-90*2/3
2,8X-32=-60
2,8X=-60+32
2,8X=-28
X=-28/2,8
X=-10
28/10.x-32=-90÷2/3
28/10.x-32=135
28/10.x=135+32
28/10.x=167
x=167÷28/10
x=835/14
Bạn tu rút gọn nha ok
Học tot
\(\left(2,8x-32\right):\frac{2}{3}=-90\)
\(2,8x-32=-135\)
\(2,8x=-103\)
\(x=-\frac{515}{14}\)
bạn ơi, bạn sai rùi đó bạn Nguyễn Thị Mai Anh