document.write( "Question 201022: solve using substitution method\r
\n" ); document.write( "\n" ); document.write( "3x+7y=0
\n" ); document.write( "x=11-6y\r
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Algebra.Com's Answer #151267 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"3x%2B7y=0\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"3%2811-6y%29%2B7y=0\" Plug in \"x=11-6y\"\r
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\n" ); document.write( "\n" ); document.write( "\"33-18y%2B7y=0\" Distribute.\r
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\n" ); document.write( "\n" ); document.write( "\"-11y%2B33=0\" Combine like terms on the left side.\r
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\n" ); document.write( "\n" ); document.write( "\"-11y=0-33\" Subtract \"33\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"-11y=-33\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "\"y=%28-33%29%2F%28-11%29\" Divide both sides by \"-11\" to isolate \"y\".\r
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\n" ); document.write( "\n" ); document.write( "\"y=3\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "\"x=11-6y\" Go back to the second equation\r
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\n" ); document.write( "\n" ); document.write( "\"x=11-6%283%29\" Plug in \"y=3\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=11-18\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"x=-7\" Subtract\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x=-7\" and \"y=3\" which form the ordered pair (-7,3)
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