Answer:
3
2
4
1
Step-by-step explanation:
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What is the question asking ???
Answer:

Step-by-step explanation:
We want to evaluate:

for x=-2 and y=-4.
We substitute to get:

We now simplify to get:



Step-by-step explanation:
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Answer:
the simplified expression is: 6y-7x
Step-by-step explanation:
-y+7y= 6y
-7x
= 6y-7x