document.write( "Question 985144: what is the answer to a polynomial that have the same costant if your subtracting like 2y-2y or -2y+2y,.is zero the answer? \n" ); document.write( "

Algebra.Com's Answer #605976 by josgarithmetic(39620) $\"\"$ $\"About$

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You are trying to ask for the Additive Inverse Property.\r
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\n" ); document.write( "\n" ); document.write( "Adding the OPPOSITE of a number is the same as SUBTRACTING the number. You can restate your first expression $\"2y-2y\"$ as $\"2y%2B%28-2y%29\"$ . We have no inverse property for subtraction; we must understand subtraction both in the usual way, AND as adding the opposite of a number.\r
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\n" ); document.write( "\n" ); document.write( "Both the expressions you asked ARE equal to 0.
\n" ); document.write( " $\"2y-2y=0\"$
\n" ); document.write( "and
\n" ); document.write( " $\"-2y%2B2y=0\"$ . \n" ); document.write( "

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