document.write( "Question 463148: Which pair of equations does NOT have a common solution?
\n" ); document.write( "a) x+y = -1; 4x-3y=24
\n" ); document.write( "b)4x+6y=12; 6x+9y=12
\n" ); document.write( "c) 2x-3y=-4; 2x+y=4
\n" ); document.write( "d) 5x-4y=9; x-2y=-3\r
\n" ); document.write( "\n" ); document.write( "Please Explain solution\r
\n" ); document.write( "\n" ); document.write( "Thank you!
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Algebra.Com's Answer #317372 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
Already posted. Even with the changes in C, B does not have a common solution. \n" ); document.write( "
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