document.write( "Question 31297: Can u help me find x and y?
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document.write( "3y=4x-9
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document.write( "2x-3y=4 \n" );
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Algebra.Com's Answer #17960 by mukhopadhyay(490)![]() ![]() ![]() You can put this solution on YOUR website! 3y=4x-9\r \n" ); document.write( "\n" ); document.write( "Substituting 3y in the other equation, we get \n" ); document.write( "2x-(4x-9)=4 \n" ); document.write( "=>2x-4x+9=4 \n" ); document.write( "=>-2x=-5 \n" ); document.write( "=>x=5/2\r \n" ); document.write( "\n" ); document.write( "Put the value of x in any equation to get y \n" ); document.write( "3y=4(5/2)-9 \n" ); document.write( "=>3y=10-9 \n" ); document.write( "=>y=1/3\r \n" ); document.write( "\n" ); document.write( "Verification: \n" ); document.write( "2x-3y=2(5/2)-3(1/3)=5-1=4 (matches) \n" ); document.write( "4x-3y=4(5/2)-3(1/3)=10-1=9 (matches) \n" ); document.write( " \n" ); document.write( " |