document.write( "Question 626828: 2x+y=8
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document.write( "3x-7y=-34
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document.write( "Solve by addition..... I have tried over and over again to solve this. \n" );
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Algebra.Com's Answer #394450 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 2x + y = 8 \n" ); document.write( "3x -7y =-34 \n" ); document.write( "multiply the 1st equation by 7, add to the 2nd equation \n" ); document.write( "14x + 7y = 56 \n" ); document.write( " 3x - 7y = -34 \n" ); document.write( "----------------addition eliminates y, find x \n" ); document.write( "17x + 0 = 22 \n" ); document.write( "x = \n" ); document.write( ": \n" ); document.write( "Find y using the 1st equation, replace x with 22/17 \n" ); document.write( "2(22/17) + y = 8 \n" ); document.write( " \n" ); document.write( "y = 8 - \n" ); document.write( "make 8 into an improper fraction \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check these annoying solutions on your calc using the 2nd equation; \n" ); document.write( "enter: 3(22/17) - 7(92/17) results - 34 \n" ); document.write( " |