I used similarities in triangles
Answer: the answer is MO=5
Step-by-step explanation:
Answer:
27, you need to simplify both sides of the equation to get x on one side.
Step-by-step explanation:
If x-y=2 then x=2+y
And if you insert that in the first equation




Or

The first one is bigger so the answer is
318*2-47=589 There are 589 nonfiction books in the library