Question

решите уравнение: а) (x-8)*2/5=2; б) 2 1/3x-2 1/3=2 1/3.

Answer 1

$a) (x-8)* \frac{2}{5} =2$
$\frac{2}{5} x- \frac{16}{5} =2$
$2x-16=10$
$2x=10+16$
$2x=26$$x=13$


$b) 2 \frac{1}{3} x-2 \frac{1}{3} =2 \frac{1}{3}$
$\frac{7}{3} x- \frac{7}{3} = \frac{7}{3}$
$7x-7=7$
$7x=7+7$
$7x=14$
$x=2$

Answer 2

2/5х-16/5=2.
2х-16=10
2х=10+16
2х=26|:2
х=13

1/3х-2 1/3=2 1/3
1/3х- 2/3=2/3
х-2=2
х=2+2
х=4