Answer:

Step by step explanation:


Answer:
px-qx
Step-by-step explanation:
Answer: X=3
Step-by-step explanation:
If there are 7 books on the floor, 7 x 3 is 21. Plus two extra books, 21 + 2 = 23. There are 23 books on the bookshelf.
What type of math is this??? Geometry? Algebra?