document.write( "Question 327467: solve by elimination method
\n" );
document.write( "0.3x-0.2y=4
\n" );
document.write( "0.2x+0.3y=-37/17 \n" );
document.write( "
Algebra.Com's Answer #234576 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 0.3x-0.2y=4 multiply by 1.5 & add. \n" ); document.write( "0.2x+0.3y=-37/17 \n" ); document.write( "0.45x-0.3y=6 \n" ); document.write( "--------------------- \n" ); document.write( "0.65x=6-37/17 \n" ); document.write( "0.65x=(6*17-37)/17 \n" ); document.write( "0.65x=(102-37)/17 \n" ); document.write( "0.65x=65/17 \n" ); document.write( "x=(65/17)/0.65 \n" ); document.write( "x=(65/17)(1/0.65 \n" ); document.write( "x=5.88 ans. \n" ); document.write( "-------------- \n" ); document.write( "0.3*5.88-0.2y=4 \n" ); document.write( "1.764-0.2y=4 \n" ); document.write( "-0.2y=4-1.764 \n" ); document.write( "-0.2y=2.236 \n" ); document.write( "y=2.236/-0.2 \n" ); document.write( "y=-11.18 ans. \n" ); document.write( " \n" ); document.write( " |