Question

1) [7+2x>5+x,
[3x+2<8+x;
2) [1-0,5x<4-x,
[9-2,8x>6-1,3x;
3) [0,4x-1<0,5x-1,7,
[2,7x-10<0,9x-1;
4)[2,8x-17>=0,3x-4,5,
[12,3x-16,6<=7,1x+19,8; 
решите систему неравенств