X= -2 / Y= -4 / Z= 4
(1.-) 3x + z - y
(2.-) 2xz - 3xy + 4
Pls help me!
1 answer:
Answer:
1.-3x+z - y
-3(-2)+4-(-4)
6+4+4
=14.
2.-2xz-3xy+4
-2(-2(4))-3(-2(-4))
-2(-8)-3(8)
16-24
= -8.
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