{7 - 11x < 9x - 2(5x + 7),
{6 - x ≥ 2(1 - 4x) - 3(1 - 3x)
{-11x - 9x + 10x < -7 - 14,
{-x + 8x - 9x ≥ -6 + 2 - 3
{-10x < -21,
{-2x ≥ -7
{x > 2,1 ;
{x ≤ 3,5
OTVET: x ∈ (2,1; 3,5]
{3(2x + 13) - 2(x + 2) > 10x - 4,
{2(4x + 9) - 2(x - 1) < 16x + 2
{6x - 2x - 10x > -4 - 39 + 4,
{8x - 2x - 16x < 2 - 18 - 2
{-6x > 39,
{-10x < -18
{x < -6,5;
{x > 1,8
OTVET: ∅