document.write( "Question 112393: Have I understood this correctly? I get confused very easy at times! I believe this is true. |-8| + |3| = |-8 + 3| Thanks so much for your time. \n" ); document.write( "
Algebra.Com's Answer #82010 by bucky(2189) ![]() You can put this solution on YOUR website! Let's try to straighten out the confusion by using a rule. Whatever the sign of a quantity \n" ); document.write( "inside the absolute value signs, when you remove the absolute value signs that quantity \n" ); document.write( "will be positive. \n" ); document.write( ". \n" ); document.write( "So lets start with: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "You can remove the absolute value signs around the -8, but when you do that you change it \n" ); document.write( "to a +8. And you can remove the absolute value signs around the +3, and it remains a +3. \n" ); document.write( "So the problem becomes: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Now let's look at what you believed to be equivalent: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "First you have to algebraically combine the terms inside the absolute value signs: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "This converts your answer to: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "And applying the rule ... remove the absolute value signs, and make sure the quantity \n" ); document.write( "they contained now has a plus sign. This means: \n" ); document.write( ".\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Notice that the two answers ... +11 and +5 ... are not the same. The correct answer to \n" ); document.write( "this problem is +11. \n" ); document.write( ". \n" ); document.write( "Hope this helps you to understand absolute values a little better. \n" ); document.write( " |