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just combine like terms. meaning combine all the ones that have the same letter

do you add to combine?

yes but make sure you take the sign of each into account for example in this problem it's -4y+(-10y)

soooooooo 14?

well for that part it would be -14y can't forget about the sign or the y. but what about the rest

So B?

and how did you arrive at that answer?

I added the like terms together

but 7+(-2) doesn't equal 9 does it?

no it is 5

and therefore b doesn't make sense does it. So what would the correct answer be

A?

Well say it like you mean it don't question mark it :) A!!!! correct btw