document.write( "Question 158920: What is the multiplicative inverse of negative nine and how do I figure that out? \n" ); document.write( "
Algebra.Com's Answer #117049 by vleith(2983)\"\" \"About 
You can put this solution on YOUR website!
Read this --> http://en.wikipedia.org/wiki/Reciprocal_(mathematics)\r
\n" ); document.write( "\n" ); document.write( "The multiplicative inverse is just \"1%2Fx\". In this case, \"x+=+-9\"\r
\n" ); document.write( "\n" ); document.write( "so
\n" ); document.write( "\"1%2F%28-9%29\" = \"-1%2F9\"\r
\n" ); document.write( "\n" ); document.write( "Now to check, multiply \"%28-9%29+%2A+%28-1%2F9%29\"} Do you get 1? If so, you know you did it correctly
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