Solve the inequality. Graph your solution.
a. Five more than x is less than 8 or 3 less than x is greater than 5.
b. Three times the difference of x and 4 is greater than or equal to -8 and less than or equal to 10.
c. The sum of -2x and 8 is less than or equal to -5 or 6 is less than -2x.