document.write( "Question 65242: 7.1x-2.0=2.2x-10.5 \n" ); document.write( "
Algebra.Com's Answer #45767 by funmath(2933)![]() ![]() ![]() You can put this solution on YOUR website! 7.1x-2.0=2.2x-10.5 \n" ); document.write( "If you hate dealing with decimals, you can get rid of them by muliplying both sides of the equation by 10. \n" ); document.write( "10(7.1x-2.0)=10(2.2x-10.5) \n" ); document.write( "71x-20=22x-105 \n" ); document.write( "71x-22x-20=22x-22x-105 \n" ); document.write( "49x-20=0-105 \n" ); document.write( "49x-20=-105 \n" ); document.write( "49x-20+20=-105+20 \n" ); document.write( "49x+0=-85 \n" ); document.write( "49x=-85 \n" ); document.write( "49x/49=-85/49 \n" ); document.write( " \n" ); document.write( "These are a pain to check by hand, but I always double check these on a calculator. Let x=-85/49 in your calculator and you'll see that both sides of the equation =-14.31632653. Therefore, just because we got a crazy fraction or decimal for an answer doesn't mean we're wrong. \n" ); document.write( "Happy Calculating!!! \n" ); document.write( " |