document.write( "Question 1048841: We have a pre algebra problem we are trying to understand.
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document.write( "it goes as -2(5-6)+10 (6-7)- 25 divided by 5= the book states the
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document.write( "answer is -13 while we end up with -7. How is the answer -13. \n" );
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Algebra.Com's Answer #664397 by josgarithmetic(39628) ![]() You can put this solution on YOUR website! Pay careful attention to Order Of Operations and signs.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "PARENTHESES first \n" ); document.write( "-2(-1)+10(-1)-25/5 \n" ); document.write( "the forward slash standing for \"division\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "MULTIPLICATIONS AND DIVISIONS, next strictly from left to right \n" ); document.write( "2+(-10)-5 \n" ); document.write( "which really is same as 2+(-10)+(-5), but the distinction should not be a problem here.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "ADDITIONS AND SUBTRACTIONS from left to right as found \n" ); document.write( "2+(-10)-5 \n" ); document.write( "-8-5 \n" ); document.write( "-13\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "- \n" ); document.write( "Order of Operations is Parentheses, Exponents, Multiplication, Division, Addition, Subtraction \n" ); document.write( "Abbreviated acronym, PEMDAS \n" ); document.write( " |