document.write( "Question 222443: Prove that if -1/2x=9,then x=-18. \n" ); document.write( "
Algebra.Com's Answer #166559 by user_dude2008(1862)\"\" \"About 
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-1/2x=9\r
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\n" ); document.write( "\n" ); document.write( "-2(-1/2x)=-2(9)\r
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\n" ); document.write( "\n" ); document.write( "1x=-18\r
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\n" ); document.write( "\n" ); document.write( "x=-18
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