document.write( "Question 1138668: Help me solve the system by substitution.\r
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Algebra.Com's Answer #756469 by ikleyn(52797) $\"\"$ $\"About$

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document.write( "x - 10y =   2     (1)\r\n" );
document.write( "x       = 11y     (2)\r\n" );
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document.write( "The second equation just expresses x = 11y  via y. \r\n" );
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document.write( "So, substitute this expression into equation (2), replacing \"x\" there. You will get\r\n" );
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document.write( "11y - 10y = 2,    or\r\n" );
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document.write( "  y       = 2.\r\n" );
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document.write( "So, you just found  \"y\".  To find \"x\", substitute y= 2 into equation (2) to get\r\n" );
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document.write( "  x = 11*2 = 22.\r\n" );
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document.write( "ANSWER.  x= 22,  y= 2.\r\n" );
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document.write( "CHECK.  To check the solution and the answer, substitute the found values into the original equations.\r\n" );
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document.write( "        Do it on your own.\r\n" );
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