Answer:
13+x
Step-by-step explanation:
all you have to do is 9+4 which is 13 and leave the +x so you get 13+x as your answer
33-23=10. 10+23=33. 23-10=13
the numbers are 23 and 10
Answer:

Step-by-step explanation:
Given




See attachment
Required
Determine the density of the wood
First, we calculate the volume of the wood.

Substitute values for Length, Width and Height


The density is:


<em> --- approximated</em>
Answer:
-99
Step-by-step explanation:

-32 + 8x - 8 = 6x + 12
8x - 40 = 6x + 12
8x = 6x + 12 + 40
8x = 6x + 52
8x - 6x = 52
2x = 52
x = 52/2
x = 26