Answer:
All numbers between -2 and 2, not touching -2 or 2
Step-by-step explanation:
-18x+21>-15 simplifies to -18x > 36, which in turn becomes 18x < -36, or
x < -2.
20x-13>27 simplifies to 20x > 40, or x > 2.
Then the solution set is
(-2, 2): All numbers between -2 and 2, not touching -2 or 2.
