document.write( "Question 668314: How do You solve this problem? The subject is: Solving System of Equations in Three Variables. \r
\n" ); document.write( "\n" ); document.write( "4a-2b+8c=30
\n" ); document.write( "a+2b-7c=-12
\n" ); document.write( "2a-b+4c=15
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Algebra.Com's Answer #415744 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Solving this one is not possible, the 1st and 3rd equations are the same
\n" ); document.write( "Simplify the 1st by dividing by 2 and you have the 3rd equation,
\n" ); document.write( "not much to work with here
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