document.write( "Question 38453: i dont get how to do this at all. i learned once, but ive forgotten & i forgot to bring home my book. the problem is what is the solution of the following system of linear equations?
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document.write( "y = 2x
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document.write( "4x - y = 10\r
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document.write( "can you please explain to me how to do this, so i can do it and the rest of them? :] \n" );
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Algebra.Com's Answer #23980 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! y = 2x \n" ); document.write( "4x - y = 10 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Sinc y=2x, substitute that value into the 2nd equation to get: \n" ); document.write( "4x-(2x)=10 \n" ); document.write( "2x=10 \n" ); document.write( "x=5 \n" ); document.write( "Substitute that into the 1st equation to get: \n" ); document.write( "y=2(5)=10 \n" ); document.write( "Solution: x=5, y=10 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |