document.write( "Question 84741: Solve the system by substition \r
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document.write( "x+y=12
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document.write( " y=2x \n" );
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Algebra.Com's Answer #61048 by wallflower(4)![]() ![]() ![]() You can put this solution on YOUR website! Hi there, for this problem you need to substitute y=2x for y in the x+y=12 and solve the equation.\r \n" ); document.write( "\n" ); document.write( "x+2x=12 \n" ); document.write( "3x=12 \n" ); document.write( "x=4 \n" ); document.write( "y=2x so you have y=2(4) y=8\r \n" ); document.write( "\n" ); document.write( "you can check your work by using x=4 and y=8 in the equations to see if they work. \n" ); document.write( "4+8=12 so it works out.\r \n" ); document.write( "\n" ); document.write( "Hope this helps you. \n" ); document.write( " |