Question 1054228
3x+y+z = 4
<u>-x-4y-z = -5 </u>
{{{2x - 3y = -1}}}
2x+3y+4z = 12
<u>-12x-4y-4z = -16</u>
{{{-10x - y = -4}}}
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2x - 3y = -1
-10x - y = -4
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2x - 3y = -1
<u>30x + 3y = 12</u>
32x =11
x = 11/32
y= 9/16  {{{y = -10x + 4}}}
z = 77/32  {{{z = 5 -x - 4y}}}