Answer:
the triangles are reflected across the line y= -x
hope this helps
Step-by-step explanation:
9x + 25 + 3x = 34 + 54
9x + 3x = 12x
34 + 54 = 88
12x + 25 = 88
- 25 - 25
12x = 63
<em><u>x = 5.25</u></em>
