Сложи почленно неравенства

1. \(12 \gt 1\) и \(1 \gt -3\) ,
   [ ][ \(\gt\) | \(\lt\) ][ ].
2. \(-9 \lt 2\) и \(5 \lt 8\) ,
   [ ][ \(\lt\) | \(\gt\) ][ ].
3. \(-8 \lt -3\) и \(-2 \lt 6\) ,
   [ ][ \(\lt\) | \(\gt\) ][ ].
4. \(0 \gt -5\) и \(4 \gt -2\) ,
   [ ][ \(\gt\) | \(\lt\) ][ ].
5. \(a - 3 \gt 6 + b\) и \(7 - 2a \gt 4 - b\) ,
   [ ][ \(\gt\) | \(\lt\) ][ ].
6. \(a + 1 \lt 2b - 3\) и \(8 - 2a \lt 5 -4b\) ,
   [ ][ \(\lt\) | \(\gt\) ][ ].