The answer is 6 x<=6 x<=12 (2 - x) - 7 x - 2 (simplified)
The blank space to form a linear pair with m∠BPD is m∠APD.
<h3>What are linear pair angles?</h3>
Linear pair of angles are formed when two lines intersect each other at a single point.
Linear pair angles are adjacent to each other.
Therefore, the sum of a linear pair angles is equals to 180 degrees.
This means linear pair angles are supplementary.
Hence,
m∠APD + m∠BPD = 180°
learn more on linear pair angles here: brainly.com/question/26555759
#SPJ1
