Решите двойное неравенство
а) -2 <= 1-2x <= 2</p>
-3 <= -2x <= 1</p>
-0,5 <= x <= 1,5</p>
б) -1 <= (6-2x)/4 <= 0</p>
-4 <= 6-2x <= 0</p>
-10 <= -2x <= -6</p>
3 <= x <= 5</p>
в) -5 < 3-4x <= 3</p>
-8 < -4x <= 0</p>
-0,75 <= x < 2</p>
г) -3 < (5x+2)/2 < 1
-6 < 5x+2 < 2
-8 < 5x < 0
-1,6 < x < 0
