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(-5+6)x=?
-4-7=?

x-11

correct

Thank you for the help (:

|dw:1436828284091:dw|

hint: you cannot divide by zero, so make sure that the denominator x+4 is not zero

I don't quite understand..

solve x+4 = 0 for x to figure out what restriction you have to make

well if x = -4, then the denominator x+4 becomes 0 right?

Can you draw it out or something? How do you determine that?

I'm sorry

ohh I understand now!! Thanks!

So it was A?

no, I said x cannot equal -4 (not positive 4)

oops my bad!

@jim_thompson5910, how did you get the red and blue colors in your first posts?

if you right click on the LaTex math, you can go to the "show math as" and then to "Tex commands"