Algebra Two Help Please?

x+y=1

y+z=10

x+z=3

x+y+z=?

(all one question)

jacob s2010-10-13T17:31:29Z

Favorite Answer

10-y=3-x

10-y=3-(1-y)

10-y=3-1+y

8=2y
y=4
x=-3
z=6

x+y+z=7

10

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