document.write( "Question 260116: find the difference in elevation between 5,642 and -28 do I add or subtract the elevation -28m to or from the elevation______m \n" ); document.write( "
Algebra.Com's Answer #191557 by Alan3354(69443)\"\" \"About 
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You want the difference between -28 and 5642.
\n" ); document.write( "You have to move 28 to get from -28 to zero.
\n" ); document.write( "Then, another 5642 to get to 5642.
\n" ); document.write( "So you add them.
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\n" ); document.write( "Or, = 5642 - (-28) = 5642 + 28 = 5670
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