document.write( "Question 5585: This question is actually about elimination because there werent any catorgories for elimination. My question is:
\n" );
document.write( "2x+y=1
\n" );
document.write( "10x-4y=2\r
\n" );
document.write( "\n" );
document.write( "My answer was (1/2,0) but I don't think that this is the right answer.\r
\n" );
document.write( "\n" );
document.write( "Thanks for the help! \n" );
document.write( "
Algebra.Com's Answer #2898 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! 1) 2x + y = 1 Rewrite as: y = 1 - 2x and substitute into equation 2) \n" ); document.write( "2) 10x - 4y = 2\r \n" ); document.write( "\n" ); document.write( "2a) 10x - 4(1 - 2x) = 2 Simplify and solve for x. \n" ); document.write( " 10x - 4 + 8x = 2 Collect like-terms. \n" ); document.write( " 18x - 4 = 2 Add 4 to both sides. \n" ); document.write( " 18x = 6 Divide both sides by 18. \n" ); document.write( " x = 6/18 = 1/3 \n" ); document.write( " y = 1 - 2x \n" ); document.write( "y = 1 - 2(1/3) \n" ); document.write( "y = 1 - 2/3 \n" ); document.write( "y = 1/3 \r \n" ); document.write( "\n" ); document.write( "Your answer should be: (1/3, 1/3)\r \n" ); document.write( "\n" ); document.write( "The verification is left as an exercise for the student. \n" ); document.write( " |