document.write( "Question 817024: how do I help solve for x and y. I only get 0=7??
\n" ); document.write( "4x-5y=7
\n" ); document.write( "-4x+5y=7
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Algebra.Com's Answer #491835 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
4x-5y=7
\n" ); document.write( "-4x+5y=7 times -1 --> 4x-5y = -7
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\n" ); document.write( "The equations are inconsistent.
\n" ); document.write( "4x-5y can't be both 7 & -7.
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\n" ); document.write( "If you graph them, you get parallel lines.
\n" ); document.write( "No intersection, no solution.
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