Posted by Anonymous on Friday, January 28, 2011 at 7:51pm.
w+x+y+z=2
2wxy+2z=7
2w+3x+2yz=2
3w2xy3z=2
solve for w, x, y, z

math  drwls, Friday, January 28, 2011 at 8:14pm
No.
Eliminate variables one at a time, or use Kramer's method of determinants.
Here is how to get rid of x. Add the first two equations.
3w + 3z = 9 or
w + z = 3
Multiply the third equation by 2 and the fourth equation by 3, and add.
4w + 6x + 4y  2z = 4
9w  6x  3y  9z = 6
13w y  11z = 10
Continue in that manner until you are left with the value of one of the variables.
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