Question 377859
I'll answer only a few, not all.  

{{{-7v - 8 <= 6(1-2v) + 1}}} 
=>  {{{-7v - 8 <=6-12v + 1}}}  
=> {{{5v <= 15}}}, 
{{{v <= 3}}}.



-3(2v-5) &#8804; -13+v 
=> -6v + 15 &#8804; -13 + v  
=>  28 &#8804; 7v  
=> 4 &#8804; v.



-24 &#8804; 6(5b-2)-8(8b-7) 
=>  -24 &#8804; 30b - 12 - 64b + 56,
=>  -24 &#8804; -34b + 44,
=>  -68 &#8804;  -34b,
=>  2 &#8805; b.