Answer:
x < -16.714... or x > 2.428...
Explanation:
|0.7x + 5| > 6.7
=> 0.7x + 5 = -6.7 or 0.7x + 5 = 6.7
=> 0.7x = -6.7 - 5 or 0.7x = 6.7 - 5
=> x = -11.7/0.7 or x = 1.7/0.7
=> x = -16.714... or x = 2.428...
note: if |u| > a, a > 0 then u < -a or u > a