document.write( "Question 605939: Could someone please help with this. I have to solve this by the elimination method and I have to show the steps. I am stumped. Please help.\r
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document.write( "solve by elimination y= 5x-10
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document.write( " 2x + 3y=21\r
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document.write( "Thank you so much for the help! \n" );
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Algebra.Com's Answer #381871 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! solve this by the elimination method \n" ); document.write( "solve by elimination \n" ); document.write( "y = 5x - 10 \n" ); document.write( "2x + 3y = 21 \n" ); document.write( ": \n" ); document.write( "Put the 1st equation into standard form also \n" ); document.write( "y = 5x - 10 \n" ); document.write( "subtract 5x from both sides \n" ); document.write( "-5x + y = -10 \n" ); document.write( "multiply by -3, add to the 2nd equation \n" ); document.write( "15x - 3y = +30 \n" ); document.write( " 2x + 3y = 21 \n" ); document.write( "-----------------adding eliminates y find x \n" ); document.write( "17x = 51 \n" ); document.write( "x = 51/17 \n" ); document.write( "x = 3 \n" ); document.write( ": \n" ); document.write( "Find y using the original 1st equation \n" ); document.write( "y = 5(3) - 10 \n" ); document.write( "y = 15 - 10 \n" ); document.write( "y = 5 \n" ); document.write( ": \n" ); document.write( "The solution is x=3, y=5 \n" ); document.write( ": \n" ); document.write( "Confirm this in the 2nd equation \n" ); document.write( "2(3) + 3(5) = 21 \n" ); document.write( "6 + 15 = 21 \n" ); document.write( " |