document.write( "Question 578099: solve the following simultaneous equation by using cramer's rule
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Algebra.Com's Answer #370512 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"system%28Px%2BQy=R%2CSx%2BTy=U%29\"\r\n" );
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document.write( "is solved by calculating these three determinants:\r\n" );
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document.write( "\"D\" = \"abs%28matrix%282%2C2%2CP%2CQ%2CS%2CT%29%29\" = \"PT-QS\"\r\n" );
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document.write( "\"D%5Bx%5D\" = \"abs%28matrix%282%2C2%2CR%2CQ%2CU%2CT%29%29\" = \"RT-QU\"\r\n" );
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document.write( "\"D%5By%5D\" = \"abs%28matrix%282%2C2%2CP%2CR%2CS%2CU%29%29\" = \"PU-RS\"\r\n" );
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document.write( "Then\r\n" );
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document.write( "\"x\" = \"D%5Bx%5D%2FD\"\r\n" );
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document.write( "\"y\" = \"D%5By%5D%2FD\"\r\n" );
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document.write( "Your system\r\n" );
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document.write( "\"system%283x%2B2y=13%2C2x-y=4%29\"\r\n" );
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document.write( "has P=3, Q=3, R=13, S=2, T=-1, U=4\r\n" );
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document.write( "Substitute those into the above and you will get:\r\n" );
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document.write( "x = 3, y = 2\r\n" );
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document.write( "Edwin
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