Question

-5<x<10
найти
3x,-8x,x+6,x-10,2x-4

Answer 1

- 5 < Х < 10
( - 5 ; 10 )
----------------
40 > - 8х > - 80
( - 80 ; 40 )
-----------------
1 < Х + 6 < 16
( 1 ; 16 )
--------------------
- 15 < Х - 10 < 0
( - 15 ; 0 )
--------------------
- 14 < 2х - 4 < 16
( - 14 ; 16 )