document.write( "Question 291008: y=10x+25 and y=5x+40 \n" ); document.write( "
Algebra.Com's Answer #210550 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"y=10x%2B25\" Start with the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"5x%2B40=10x%2B25\" Plug in \"y=5x%2B40\"\r
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\n" ); document.write( "\n" ); document.write( "\"5x=10x%2B25-40\" Subtract \"40\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"5x-10x=25-40\" Subtract \"10x\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"-5x=25-40\" Combine like terms on the left side.\r
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\n" ); document.write( "\n" ); document.write( "\"-5x=-15\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28-15%29%2F%28-5%29\" Divide both sides by \"-5\" to isolate \"x\".\r
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\n" ); document.write( "\n" ); document.write( "\"x=3\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "\"y=10x%2B25\" Go back to the first equation\r
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\n" ); document.write( "\n" ); document.write( "\"y=10%283%29%2B25\" Plug in \"x=3\"\r
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\n" ); document.write( "\n" ); document.write( "\"y=30%2B25\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"y=55\" Add.\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x=3\" and \"y=55\" which form the ordered pair (ie the two graphs intersect at this point).\r
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\n" ); document.write( "\n" ); document.write( "This means that the system is consistent and independent.
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