Question 965798
solve for x,y and z
x+y-2z=5
x+z=4 --> x = 4-z
y-z=6 --> y = z+6
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x+y-2z=5
sub for x & y
4-z + z+6 - 2z = 5
-2z + 10 = 5
z = 5/2
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x = 3/2
y = 17/2