Question

What is the solution to the following system?
[x+y+z=6
x-y+Z=8
x+y-2-0

Answer 1

144

Explanation:

Answer 2

x+y+z=6

x-y+z=8

x+y-2=0 (fixed typo)

Subtracting the first two,

2y = -2

y = -1

x = -y+2 = 3

z=6-x-y=4

Answer: (3, -1, 4), first choice