alajah02
alajah02
26-09-2019
Mathematics
contestada
Help me please thank you!!!
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SupaPreme
SupaPreme
26-09-2019
Answer: C
Explanation:
2(Eq 1) = 2x + 2y + 2z = 2
Now add that to equation 1
x + y - 2z = -2
+2x + 2y + 2z = 2
Notice -2z from the first equation plus 2z from second equation equals 0.
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Leanaselena
Leanaselena
26-09-2019
Use Photomath math it’s really good download it
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