document.write( "Question 1207606: Really need help on this problem.\r
\n" ); document.write( "\n" ); document.write( "2x + 3y = 12
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\n" ); document.write( "\n" ); document.write( "Thank you in advance.
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Algebra.Com's Answer #845609 by MathTherapy(10552) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Really need help on this problem.\r\n" );
document.write( "\r\n" );
document.write( "2x + 3y = 12\r\n" );
document.write( "x - 2y = -3\r\n" );
document.write( "\r\n" );
document.write( "Thank you in advance.\r\n" );
document.write( "\r\n" );
document.write( "2x + 3y = 12 ------- eq (i)\r\n" );
document.write( " x - 2y = -3 ------- eq (ii)\r\n" );
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document.write( "Id you so choose to use the ELIMINATION method to solve this system, then it's better to MANIPULATE eq (ii)\r\n" );
document.write( "ONLY, unlike the approach the other person took. When manipulated (multiplied by 2), eq (ii) becomes: \r\n" );
document.write( "   2x - 4y = - 6 ----- eq (iii)\r\n" );
document.write( "   2x + 3y =  12 ----- eq (i)\r\n" );
document.write( "        7y = 18 ----- Subtracting eq (iii) from eq (i)\r\n" );
document.write( "       \r\n" );
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document.write( "    x - 2y = - 3 ------ Substituting  for y in eq (ii)\r\n" );
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