Start from

It may be useful to multiply the whole expression by 2, in order to get rid of denominators:

Distribute the negative sign in the left hand side:

Move all terms involving x to the left, and all constants to the right:

Sum like terms:

DIvide both sides -5:

Answer: Slope=1
You can find slope by using the 'rise over run' method. Count the number of units along the x axis, and up the y axis. As I can see, I think it is labeled as 4,4. So put the numbers into y/x (4/4) and then simplify as needed. In this case (If I can see correctly) then the slope is 1.
The answer is (3,0). Hope this helps!(:
Answer:
○ 
Explanation:
This should help you figure out why this is the answer:

I am joyous to assist you anytime.
The constant of proportionality is 3/8