document.write( "Question 183269: Use elimination method:tnx
\n" ); document.write( "5x-3y=32
\n" ); document.write( "4x+3y=4
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Algebra.Com's Answer #137609 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Start with the given system of equations:\r
\n" ); document.write( "\n" ); document.write( "\"system%285x-3y=32%2C4x%2B3y=4%29\"\r
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\n" ); document.write( "\n" ); document.write( "Add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this:\r
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\n" ); document.write( "\n" ); document.write( "\"%285x-3y%29%2B%284x%2B3y%29=%2832%29%2B%284%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%285x%2B4x%29%2B%28-3y%2B3y%29=32%2B4\" Group like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"9x%2B0y=36\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"9x=36\" Simplify.\r
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\n" ); document.write( "\n" ); document.write( "\"x=%2836%29%2F%289%29\" Divide both sides by \"9\" to isolate \"x\".\r
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\n" ); document.write( "\n" ); document.write( "\"x=4\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "\"5x-3y=32\" Now go back to the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"5%284%29-3y=32\" Plug in \"x=4\".\r
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\n" ); document.write( "\n" ); document.write( "\"20-3y=32\" Multiply.\r
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\n" ); document.write( "\n" ); document.write( "\"-3y=32-20\" Subtract \"20\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"-3y=12\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "\"y=%2812%29%2F%28-3%29\" Divide both sides by \"-3\" to isolate \"y\".\r
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\n" ); document.write( "\n" ); document.write( "\"y=-4\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x=4\" and \"y=-4\".\r
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\n" ); document.write( "\n" ); document.write( "Which form the ordered pair .\r
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\n" ); document.write( "\n" ); document.write( "This means that the system is consistent and independent.\r
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\n" ); document.write( "\n" ); document.write( "Notice when we graph the equations, we see that they intersect at . So this visually verifies our answer.\r
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\n" ); document.write( "\n" ); document.write( " Graph of \"5x-3y=32\" (red) and \"4x%2B3y=4\" (green) \r
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