Answer
$(-\infty, 11]$
Refer to the attached image below for the graph.
Work Step by Step
Distribute 2 to have:
$\\14x-6 \le 12x+16$
Subtract $12x$ to both sides to have:
$\\14x-6-12x \le 12x+16-12x
\\2x-6 \le 16$
Add 6 to both sides to have:
$2x-6+6 \le 16 + 6
\\2x \le 22$
Divide 2 to both sides to have:
$\\x \le \frac{22}{2}
\\x \le 11$
