document.write( "Question 1203967: Solve using any method: Substitution or Addition Method or Elimination Method\r
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\n" ); document.write( "\n" ); document.write( "y = 2x - 3\r
\n" ); document.write( "\n" ); document.write( "-6x + 3y = -9
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Algebra.Com's Answer #839919 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "y = 2x - 3
\n" ); document.write( "-6x + 3y = -9
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\n" ); document.write( "\n" ); document.write( "Second equation, \"-2x%2By=-3\"\r
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\n" ); document.write( "\n" ); document.write( "Substituting according to the first equation: \"-2x%2B2x-3=-3\";
\n" ); document.write( "\"0-3=-3\", which is true and the variables are lost.\r
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\n" ); document.write( "\n" ); document.write( "LOOK at the system carefully!
\n" ); document.write( "\"system%28y=2x-3%2C-6x%2B3y=-9%29\"
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\n" ); document.write( "\"system%28y=2x-3%2Cy=2x-3%29\"---------the two equations are equivalent. All points on the one line are solutions.
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