Posted by Quinton on Monday, September 10, 2012 at 10:18am.
Please help with the translation of this algebraic expression: Twentyseven more than a number and the sum of twentyseven and a number, what is the difference between the two? Thank you!

Math  Steve, Monday, September 10, 2012 at 11:21am
x+27
x+27
difference is zero
"more than" means "added to" or "sum", so the two expressions mean the same thing
Now, if the two "a number" are not the same, then we have
x+27
y+27
difference is (x+27)(y+27) = xy, or the difference between the two numbers

Math  Quinton, Monday, September 10, 2012 at 12:30pm
wouldn't "the sum of twentyseven and a number" be equivalent to 27 + y

Math  Steve, Monday, September 10, 2012 at 2:15pm
yes, if the number is "y"

Math  Steve, Monday, September 10, 2012 at 2:16pm
hmm. "sum" is addition, which is commutative.
That means that 27+y = y+27
Your suggestion is good, in that it follows the wording of the problem, but the value is the same as y+27.
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