Answer:
Solution: x < -2 or x > 16
Step-by-step explanation:
x − 7 < −9 or x − 7 > 9
x − 7 < −9 : x − 7 > 9
x - 7 < -9
Add 7 to both sides
x - 7 +7 < -9 + 7
Simplify
x < -2
x - 7 > 9 : x > 16
x - 7 > 9
Add 7 to both sides
x - 7+7 > 9 +7
Simplify
x > 16
Combine the intervals
x < -2 or x > 16
