It is 22934521. Hope this helps!
Simple answer to the equation without the circumstances:
3.1x - 1.6x = 35 + 10
1.5x = 45
x = 30
So first of all you know that one side is 14cm and the other side is 6cm
What you would do is: 14-6=???
Your answer should be: 8cm
Answer
Sol: The correct answer is b. three planes that contain point B are ABD, AEF and DHF.