Paula R.
asked • 05/12/14
system of equations
x-y=4
4x-3z=28
4y+z=12
Section 3.3. 6
Parviz F.
answered • 05/13/14
Mathematics professor at Community Colleges
X - Y = 4
4X -3Z = 28
3(4Y + Z = 12)
4X + 12Y = 64
-4( X - Y = 4)
16Y = 48
Y = 48/16 =3
X = 4+3 =7
4(7) - 3Z = 28
Z = 0
It works if it is tested.
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