document.write( "Question 751835: 5x-7y=11
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document.write( "3x=2y \n" );
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Algebra.Com's Answer #457450 by malglu(63)![]() ![]() ![]() You can put this solution on YOUR website! reaarange the sums\r \n" ); document.write( "\n" ); document.write( "5x -7y =11 \n" ); document.write( "3x - 2y = 0\r \n" ); document.write( "\n" ); document.write( "multiply the first by 3 and the secone by 5\r \n" ); document.write( "\n" ); document.write( "15x - 21y = 33 \n" ); document.write( "15x -10y = 0\r \n" ); document.write( "\n" ); document.write( "minus the second equation from the first\r \n" ); document.write( "\n" ); document.write( "-11y = 33 \n" ); document.write( "y=-3\r \n" ); document.write( "\n" ); document.write( "sunsitute this in any of the equations to get x \n" ); document.write( "x=-2 \n" ); document.write( " |