To do this you must combine like terms as follows.
7x + 6x = 13x
7 - 9 = -2
Combine these together and you will get the following.
13 - 2 or -2 +13
Answer:

Step-by-step explanation:
Given


Required
Determine the equilibrium price
This is determined when Demand = Supply
So:

Collect Like Terms


Solve for x


<em>Hence; The equilibrium price is when x = 52.00</em>
A and C is 59 because 1 line is 180 degrees so you add 75 and 46 and you get 121 and then do 180 - 121 and you get 59
I hope this helps you
?=10×10
?=100