Question

решите уравнение 2/ 5- 3/5x=2/5-1/10x+3

Answer 1

$\frac{2}{5} - \frac{3}{5} x = \frac{2}{5} - \frac{1}{10} x + 3$
$\frac{2}{5} - \frac{2}{5} - \frac{3}{5} x + \frac{1}{10} x - 3 = 0$
$\frac{1}{10} x - \frac{6}{10} x - \frac{30}{10} = 0$
1x-6x-30=0
-5x=30
x=-6