Which phrase matches the algebraic expression below?
2(x + 7) + 10
Two times the sum of x and seven plus ten
Two times the difference of x and seven plus ten
Two times x minus seven plus ten
Two times x plus the sum of seven and ten

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- charlotte123

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- anonymous

Once again, I'll try to illustrate each for you. Hopefully these will start to make sense after doing a few.
1. 2(x+7) + 10
2. 2(x-7) + 10
3. 2x-7+10
4. 2x + (7+10)
Another key word I look for is "Sum". So when they say "Two times the sum of...", in your mind you should think:
2( ___ + ___ )
Same thing with difference. "Two times the difference of..."
2( ___ - ___ )

- charlotte123

this one is confusing XD I wont be able to solve it but I will try my best :) for now I will just wait for u XD thanks so much for the help ^O^

- anonymous

Always best to give it a shot, and then ask for help. Good luck with the rest and enjoy!

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## More answers

- charlotte123

I think its A :D

- charlotte123

Is that right? :)

- anonymous

Haha yes! What you wrote for the problem and what I put for the first answer are exactly the same, of course they are the same silly!

- charlotte123

oh god I just noticed that *facepalm* yep I really need to pay more attention to these things XD thanks so much drew ^O^

- charlotte123

can u check this answer for me? :) its a quick question ^-^

- charlotte123

It says: Seth's age can be described as 4 less than 2 times his cousin's age. If his cousin's age is represented by the variable "m", write the algebraic expression representing Seth's age using "m".

- charlotte123

My answer: Algebraic expression representing Seth's age using "m":
2m - 4

- charlotte123

what da ya think? :D

- anonymous

Looks good!

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