document.write( "Question 27816: How do you find the difference of -20 - -30? \n" ); document.write( "
Algebra.Com's Answer #15151 by wuwei96815(245)\"\" \"About 
You can put this solution on YOUR website!
-20 - -30 = -20 + 30 = 10\r
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\n" ); document.write( "\n" ); document.write( "Rememeber a - and a - equal a +
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