document.write( "Question 885899: I'm using The Complete Idiot's Guide to Pre-Algebra. I'm working on signed numbers and the answer to this one problem doesn't make sense.\r
\n" ); document.write( "\n" ); document.write( "-13 + 5= ? My answer was -8. The book says the answer is -7. Here is the explanation: This is the same as -(13-5)= -7. -13 is negative and 5 is positive, but 5 is less than 13, so you should expect the answer to be negative.
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Algebra.Com's Answer #535525 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
-8 is correct.
\n" ); document.write( "Sometimes the book is wrong. Not often, but sometimes.
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