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
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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. \n" );
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Algebra.Com's Answer #535525 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! -8 is correct. \n" ); document.write( "Sometimes the book is wrong. Not often, but sometimes. \n" ); document.write( " |