document.write( "Question 1032541: 2x-3y=18
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Algebra.Com's Answer #647217 by ikleyn(52787)\"\" \"About 
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document.write( "2x - 3y =  18,     (1)\r\n" );
document.write( "5x + 9y = -10.     (2)\r\n" );
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document.write( "Multiply equation (1) by 5 (both sides) and equation (2) by 2. You will get\r\n" );
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document.write( "10x - 15y =  90,   (3)\r\n" );
document.write( "10x + 18y = -20.   (4)\r\n" );
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document.write( "Now distract equation (3) from equation (4) (both sides). You will get\r\n" );
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document.write( "-15y - 18y = 90 -(-20),\r\n" );
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document.write( "-33y = 110,\r\n" );
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document.write( "y = \"110%2F%28-33%29\" = \"-110%2F33\" = -\"3\"\"1%2F3\".\r\n" );
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document.write( "Then from (1)  x = \"%2818%2B3y%29%2F2\" = \"18-10%2F2\" = \"8%2F2\" = 4.\r\n" );
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document.write( "Answer. x = 4, y = -\"3\"\"1%2F3\".\r\n" );
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