document.write( "Question 388335: Solve by the elimination method\r
\n" ); document.write( "\n" ); document.write( "2r-5s=-33
\n" ); document.write( "5r+2s=48\r
\n" ); document.write( "\n" ); document.write( "I think the answer is that there is no solution but I am not sure. Please someone help me to solve this
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Algebra.Com's Answer #274639 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Start with the given system of equations:\r
\n" ); document.write( "\n" ); document.write( "\"system%282r-5s=-33%2C5r%2B2s=48%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"2%282r-5s%29=2%28-33%29\" Multiply the both sides of the first equation by 2.\r
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\n" ); document.write( "\n" ); document.write( "\"4r-10s=-66\" Distribute and multiply.\r
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\n" ); document.write( "\n" ); document.write( "\"5%285r%2B2s%29=5%2848%29\" Multiply the both sides of the second equation by 5.\r
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\n" ); document.write( "\n" ); document.write( "\"25r%2B10s=240\" Distribute and multiply.\r
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\n" ); document.write( "\n" ); document.write( "So we have the new system of equations:\r
\n" ); document.write( "\n" ); document.write( "\"system%284r-10s=-66%2C25r%2B10s=240%29\"\r
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\n" ); document.write( "\n" ); document.write( "Now 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( "\"%284r-10s%29%2B%2825r%2B10s%29=%28-66%29%2B%28240%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%284r%2B25r%29%2B%28-10s%2B10s%29=-66%2B240\" Group like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"29r%2B0s=174\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"29r=174\" Simplify.\r
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\n" ); document.write( "\n" ); document.write( "\"r=%28174%29%2F%2829%29\" Divide both sides by \"29\" to isolate \"r\".\r
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\n" ); document.write( "\n" ); document.write( "\"r=6\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "\"4r-10s=-66\" Now go back to the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"4%286%29-10s=-66\" Plug in \"r=6\".\r
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\n" ); document.write( "\n" ); document.write( "\"24-10s=-66\" Multiply.\r
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\n" ); document.write( "\n" ); document.write( "\"-10s=-66-24\" Subtract \"24\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"-10s=-90\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "\"s=%28-90%29%2F%28-10%29\" Divide both sides by \"-10\" to isolate \"s\".\r
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\n" ); document.write( "\n" ); document.write( "\"s=9\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"r=6\" and \"s=9\".\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( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Also, feel free to check out my tutoring website\r
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\n" ); document.write( "\n" ); document.write( "Jim
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