document.write( "Question 45914: solve the system\r
\n" ); document.write( "\n" ); document.write( "3x-4y=-3
\n" ); document.write( "6x+2z=-7/2
\n" ); document.write( "2y-4z=4\r
\n" ); document.write( "\n" ); document.write( "i am stuck on all especially the fraction
\n" ); document.write( "

Algebra.Com's Answer #30486 by Nate(3500)\"\" \"About 
You can put this solution on YOUR website!
Modify The Fraction:
\n" ); document.write( "\"6x+%2B+2z+=+-7%2F2\"
\n" ); document.write( "\"12x+%2B+4z+=+-7\"
\n" ); document.write( "Exchange The Equation:
\n" ); document.write( "\"12x+%2B+4z+=+-7\"
\n" ); document.write( "\"z+=+-3x+-+7%2F4\"
\n" ); document.write( "Plug:
\n" ); document.write( "\"2y+-+4z+=+4\"
\n" ); document.write( "\"2y+-+4%28-3x+-+7%2F4%29+=+4\"
\n" ); document.write( "\"2y+%2B+12x+%2B+7+=+4\"
\n" ); document.write( "\"y+=+-3%2F2+-+6x\"
\n" ); document.write( "Plug:
\n" ); document.write( "\"3x+-+4y+=+-3\"
\n" ); document.write( "\"3x+-+4%28-3%2F2+-+6x%29+=+-3\"
\n" ); document.write( "\"3x+%2B+6+%2B+24x+=+-3\"
\n" ); document.write( "\"27x+=+-9\"
\n" ); document.write( "\"x+=+-1%2F3\"
\n" ); document.write( "Plug:
\n" ); document.write( "\"12x+%2B+4z+=+-7\"
\n" ); document.write( "\"12%28-1%2F3%29+%2B+4z+=+-7\"
\n" ); document.write( "\"-4+%2B+4z+=+-7\"
\n" ); document.write( "\"4z+=+-3\"
\n" ); document.write( "\"z+=+-3%2F4\"
\n" ); document.write( "Plug:
\n" ); document.write( "\"2y+-+4z+=+4\"
\n" ); document.write( "\"2y+-+4%28-3%2F4%29+=+4\"
\n" ); document.write( "\"2y+%2B+3+=+4\"
\n" ); document.write( "\"2y+=+1\"
\n" ); document.write( "\"y+=+1%2F2\"
\n" ); document.write( "(-1/3,1/2,-3/4)
\n" ); document.write( "Check:
\n" ); document.write( "\"3x+-+4y+=+-3\"
\n" ); document.write( "\"3%28-1%2F3%29+-+4%281%2F2%29+=+-3\"
\n" ); document.write( "\"-1+-+2+=+-3\" Correct
\n" ); document.write( "\"6x+%2B+2z+=+-7%2F2\"
\n" ); document.write( "\"6%28-1%2F3%29+%2B+2%28-3%2F4%29+=+-7%2F2\"
\n" ); document.write( "\"-4%2F2+-+3%2F2+=+-7%2F2\" Correct
\n" ); document.write( "\"2y+-+4z+=+4\"
\n" ); document.write( "\"2%281%2F2%29+-+4%28-3%2F4%29+=+4\"
\n" ); document.write( "\"1+%2B+3+=+4\" Correct
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