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Kitty [74]
3 years ago
13

X= -2 / Y= -4 / Z= 4 (1.-) 3x + z - y (2.-) 2xz - 3xy + 4 Pls help me!

Mathematics
1 answer:
Sergio [31]3 years ago
4 0

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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