document.write( "Question 420648: 3x - 4y = 4
\n" );
document.write( "x + 2y = 8\r
\n" );
document.write( "\n" );
document.write( "(Solve using any method, and please name the method as well) \n" );
document.write( "
Algebra.Com's Answer #293850 by stanbon(75887) ![]() You can put this solution on YOUR website! 3x - 4y = 4 \n" ); document.write( "x + 2y = 8 \n" ); document.write( "----- \n" ); document.write( "Method: elimination \n" ); document.write( "Multiply thru the 2nd equation by 2: \n" ); document.write( "3x - 4y = 4 \n" ); document.write( "2x + 4y = 16 \n" ); document.write( "---- \n" ); document.write( "Add and solve for \"x\": \n" ); document.write( "5x = 20 \n" ); document.write( "x = 4 \n" ); document.write( "--- \n" ); document.write( "Solve for \"y\": \n" ); document.write( "x + 2y = 8 \n" ); document.write( "4 + 2y = 8 \n" ); document.write( "2y = 4 \n" ); document.write( "y = 2 \n" ); document.write( "---- \n" ); document.write( "Solution: (4,2) \n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |