Simplify the following expression: (x − 8y) - (2x − 4y). If the final answer is written in the form Ax + By, what is the value of B?

Question

hero · Answer

Hint: 

(x - 2x) + (-8y + 4y)

unklerhaukus · Answer

now factor out the x form the first bracket 
and factor  y out from the second bracket

anonymous · Answer

-x - 4y ?
so the answer would be -4y?

unklerhaukus · Answer

so close

unklerhaukus · Answer

you have simplified correctly

hero · Answer

-x - 4y is correct. I don't know why you got rid of the -x

anonymous · Answer

the question is asking for the value of b so the answer would be jus -4 i think right?

unklerhaukus · Answer

$$-x-4y$$$$Ax + By$$

$$A=-1;\qquad B=?$$

unklerhaukus · Answer

thats it

hero · Answer

lol, I only read one part of the question. Now I see what's going on

anonymous · Answer

ok thank you people were telling me the answer is 12 for some reason

unklerhaukus · Answer

the answer to the question at the top pf the page is not 12

hero · Answer

So this means @helpmexoxo had it correct all along. B = -4

unklerhaukus · Answer

if you are trying to get 12 you might have the wrong question
if the expression was 
-(x − 8y) - (2x − 4y)
then B=12

unklerhaukus · Answer

or if it was 
(x + 8y) - (2x − 4y)
then B=12