Question 674694
{{{4(8-2b)-2b <=32}}}  use distribution to expand the left most term
{{{32 - 8b - 2b <= 32}}} collect like terms (collect the terms with b in them and also collect the constants)
{{{-10b <= 0}}} isolate the variable by dividing both sides by -10
{{{b >= 0 }}} remember that when you divide or multiply an inequality by a negative number, you must flip the sign of the inequality

Test your answer by selecting a value for b that is > 0, one that is 0, and one that is less than 0 . Then verify the result is 'true' for >0 and 0. And hat it is not true for b < 0.