document.write( "Question 192603: 2x+y=1
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document.write( "4x-2y=22 \n" );
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Algebra.Com's Answer #144586 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! 1) 2x+y=1\r \n" ); document.write( "\n" ); document.write( "2) 4x-2y=22\r \n" ); document.write( "\n" ); document.write( "mult (1) by 2\r \n" ); document.write( "\n" ); document.write( "4x+2y=2\r \n" ); document.write( "\n" ); document.write( "add to (2)\r \n" ); document.write( "\n" ); document.write( "8x=24 \n" ); document.write( "divide both sides by 8\r \n" ); document.write( "\n" ); document.write( "x=3 answer\r \n" ); document.write( "\n" ); document.write( "substitute in (1)\r \n" ); document.write( "\n" ); document.write( "2(3) +y=1 \n" ); document.write( "6+y=1 \n" ); document.write( "subt 6 both sides of eqn \n" ); document.write( "y=(-5) answer\r \n" ); document.write( "\n" ); document.write( "check (1) 2(3)+(-5)=1 ok\r \n" ); document.write( "\n" ); document.write( "(2) 4(3)-2(-5)=22 \n" ); document.write( "12+10=22 ok \n" ); document.write( " |