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)\"\" \"About 
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.
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\n" ); document.write( "So lets start with:
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\n" ); document.write( "\"abs%28-8%29+%2B+abs%28%2B3%29\"
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\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:
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\n" ); document.write( "\"abs%28-8%29+%2B+abs%28%2B3%29+=+%2B8+%2B+3+=+%2B11\"
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\n" ); document.write( "Now let's look at what you believed to be equivalent:
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\n" ); document.write( "\"abs%28-8+%2B+3%29\"
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\n" ); document.write( "First you have to algebraically combine the terms inside the absolute value signs:
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\n" ); document.write( "\"-8+%2B+3+=+-5\"
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\n" ); document.write( "This converts your answer to:
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\n" ); document.write( "\"abs%28-5%29\"
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\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:
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\n" ); document.write( "\n" ); document.write( "\"abs%28-8+%2B+3%29=abs%28-5%29+=+%2B5\"
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\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.
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\n" ); document.write( "Hope this helps you to understand absolute values a little better.
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