document.write( "Question 29801: I do not understand this problem ???
\n" ); document.write( "Use elimination to solve:
\n" ); document.write( "x/2+2y=9
\n" ); document.write( "2x-y=18
\n" ); document.write( "please help. \n" ); document.write( "
Algebra.Com's Answer #16525 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
multiply top equation by 4 to give 2x + 8y = 36.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The 2 equations are therefore:\r
\n" ); document.write( "\n" ); document.write( "2x + 8y = 36
\n" ); document.write( "2x - y = 18\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Subtract them, leaving us with 9y = 18. So y = 18/9 --> y = 2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Put this into either equation:
\n" ); document.write( "2x-y = 18
\n" ); document.write( "2x-(2) = 18
\n" ); document.write( "2x-2 = 18
\n" ); document.write( "2x = 20
\n" ); document.write( "x = 20/2
\n" ); document.write( "x = 10\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Put both in the other equation to check your answer is correct:
\n" ); document.write( "x/2 + 2y = 9
\n" ); document.write( "10/2 + 2(2)
\n" ); document.write( "5 + 4
\n" ); document.write( "9 --> correct!\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "jon.
\n" ); document.write( " \n" ); document.write( "
\n" );