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Mathematics 15 Online
OpenStudy (anonymous):

what is the sum of 1/g+2 + 3/g+1

OpenStudy (kropot72):

\[1/(g+2)+3/(g+1)=((g+1)+3(g+2))\div((g+2)(g+1))\] =\[(4g+7)\div((g+2)(g+1))\]

OpenStudy (anonymous):

So do you cross multiply then?

OpenStudy (kropot72):

The answer is: 4g + 7 ------------- (g + 2)(g + 1)

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