document.write( "Question 1014306: I need help on these questions for math. It's on \" Elimination using Multiplication \"
\n" ); document.write( "4x - y = 9
\n" ); document.write( "5x + 2y = 8 \r
\n" ); document.write( "\n" ); document.write( "And on this problem 6x -4y = -8
\n" ); document.write( "4x + 2y = -3 \n" ); document.write( "

Algebra.Com's Answer #630616 by ikleyn(52810) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "I need help on these questions for math. It's on \" Elimination using Multiplication \"
\n" ); document.write( "4x - y = 9
\n" ); document.write( "5x + 2y = 8 \r
\n" ); document.write( "\n" ); document.write( "And on this problem 6x -4y = -8
\n" ); document.write( "4x + 2y = -3
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

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document.write( "1.\r\n" );
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document.write( "4x -  y = 9   (1)\r\n" );
document.write( "5x + 2y = 8   (2)\r\n" );
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document.write( "Multiply the equation (1) by 2 (both sides and all the terms) and then add to the equation(2). You will get\r\n" );
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document.write( "8x + 5x = 2*8 + 9,   or\r\n" );
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document.write( "13x = 26.\r\n" );
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document.write( "Hence, x =  = 2.\r\n" );
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document.write( "Then from (1) y = 4x - 9 = 4*2 -9 = 8-9 = 1.\r\n" );
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document.write( "Solved.\r\n" );
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document.write( "2.\r\n" );
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document.write( "6x - 4y = -8    (1)\r\n" );
document.write( "4x + 2y = -3    (2)\r\n" );
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document.write( "Multiply equation (2) by 2 and then add to the equation (1).\r\n" );
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document.write( "From this point please complete the solution yourself.\r\n" );
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