1.
{3x + 4 <= 4x + 6
{x - 5 <= 4-2x</p>
{3x - 4x
{-x <= 2 / :(-1)
{3x <= 9 / : 3</p>
{x => -2
{x <= 3</p>
2.
{2y - (y-4) < 6
{y > 3(2y-1) + 18
{2y - y + 4 < 6
{y > 6y - 3 + 18
{2y - y < 6 - 4
{y - 6y > -3 + 18
{y < 2
{-5y > 15 / : (-5)
{y < 2
{y < -3