document.write( "Question 459201: If 2x=7 and 3y=2,then wht is the value of 9xy?
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document.write( "a)16 b)28 c)40 d)48 \n" );
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Algebra.Com's Answer #314931 by richard1234(7193) You can put this solution on YOUR website! Multiply the two equations to get\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(2x)(3y) = 7*2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6xy = 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply both sides by 3/2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9xy = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Not one of the answer choices... \n" ); document.write( " |