Question

-1-3x=2x+1 найдите корень

Answer 1

-1-3x=2x+1 
-1-1=2х+3х
5х=-2
х=-2:5
х=-0,4

Answer 2

$- 1 - 3x = 2x + 1 \\ - 3x - 2x = 1 + 1 \\ - 5x = 2 \\ x = - \frac{2}{5} \\ x = - 0.4$