document.write( "Question 1054679: 2x + y – z = 5 2x + 8y + 4z = 32 30x + 12y – 4z = 24 \n" ); document.write( "

Algebra.Com's Answer #669863 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"2x+%2B+y-+z+=+5\"$
\n" ); document.write( "2. $\"2x+%2B+8y+%2B+4z+=+32\"$
\n" ); document.write( "3. $\"30x+%2B+12y+-4z+=+24+\"$
\n" ); document.write( "Multiply 1 by 4 and add to 2,
\n" ); document.write( " $\"8x%2B4y-4z%2B2x%2B8y%2B4z=20%2B32\"$
\n" ); document.write( " $\"10x%2B12y=52\"$
\n" ); document.write( "4. $\"5x%2B6y=26\"$
\n" ); document.write( "Add 2 and 3,
\n" ); document.write( " $\"2x%2B8y%2B4z%2B30x%2B12y-4z=32%2B24\"$
\n" ); document.write( " $\"32x%2B20y=56\"$
\n" ); document.write( "5. $\"8x%2B5y=14\"$
\n" ); document.write( "Multiply 4 by 5 and 5 by -6 and add together,
\n" ); document.write( " $\"25x%2B30y-48x-30y=130-84\"$
\n" ); document.write( " $\"-23x=46\"$
\n" ); document.write( " $\"x=-2\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"5%28-2%29%2B6y=26\"$
\n" ); document.write( " $\"6y=36\"$
\n" ); document.write( " $\"y=6\"$
\n" ); document.write( "and
\n" ); document.write( " $\"2%28-2%29%2B6-z=5\"$
\n" ); document.write( " $\"-4%2B6-z=5\"$
\n" ); document.write( " $\"-z=3\"$
\n" ); document.write( " $\"z=-3\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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