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September 18, 2014

September 18, 2014

Posted by **sherri r** on Monday, January 19, 2009 at 4:14pm.

- math -
**Reiny**, Monday, January 19, 2009 at 4:38pmIs it ???

-32+3z=4(x-2y) then 4x-8y-3z = -32 (1)

4(x-2y-z)= -36 then 4x-8y+2z = -36 (2)

-2(2x+y)+2z=-12 then -4x-2y+2z = -12 (3)

(1) - (2) ---> z = 4

(2) + (3) ----> -10y - 2z = -48

-10y - 8 = -48

y = 4

back in (1)

4x - 32 - 12 = -32

x = 3

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