1) 2х+5<7
2x<2
x<2
2) 3х-5 ≥7х-15
3x-7x≥5-15
-4x≥-10
x≤2,5
3) х/3+(2х-1)/5>(2х-1)/15
(11x-3)/15>(2х-1)/15
(11x-3-2x+1)/15>0
9x-2>0
9x>2
x>2/9
1) 2х+5<7
2x<2
x<2
2) 3х-5 ≥7х-15
3x-7x≥5-15
-4x≥-10
x≤2,5
3) х/3+(2х-1)/5>(2х-1)/15
(11x-3)/15>(2х-1)/15
(11x-3-2x+1)/15>0
9x-2>0
9x>2
x>2/9