document.write( "Question 1144381: If Y equals 10X plus 2 and 2X plus Y equals 26 what is the value of X minus Y \n" ); document.write( "

Algebra.Com's Answer #765477 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "    Y = 10X + 2     (1)\r\n" );
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document.write( "    2X + Y = 26     (2)\r\n" );
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document.write( "From equation(1), you just have an expression for Y via X.\r\n" );
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document.write( "Substitute this expression into equation (2). You will get then\r\n" );
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document.write( "    2X + (10x + 2) = 26.\r\n" );
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document.write( "Simplify and solve for X\r\n" );
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document.write( "    12X = 26 - 2\r\n" );
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document.write( "    12X = 24\r\n" );
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document.write( "      X = 24/12 = 2.\r\n" );
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document.write( "You just found X:  X = 2.\r\n" );
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document.write( "To find Y, substitute this value X= 2 into equation (2).  You will get\r\n" );
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document.write( "    Y = 10*2 +2 = 22.\r\n" );
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document.write( "Now you have everything to find the difference X-Y.\r\n" );
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document.write( "I leave this last step to you.\r\n" );
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\n" ); document.write( "\n" ); document.write( "To the tutor @richwmuller :\r
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document.write( "    I agree with you: for many visitors it is the way to get a solution and/or explanation that they practically \r\n" );
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document.write( "    will get NEVER and from NOWHERE.\r\n" );
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document.write( "    I do it usually 10 - 20 times per day, when I find the problem formulation correct (or close to be correct)\r\n" );
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document.write( "    and then I think that my participation will be useful.\r\n" );
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document.write( "    Have a nice day (!)\r\n" );
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