Answer:

Step-by-step explanation:
Given

Solving (a): Possible union elements
This is the represented by element with the largest number of the sets
i.e.

Solving (b): Possible intersection elements
This is the represented by element with the least number of the sets
i.e.

Answer:
-2x+-8-3x-8
Step-by-step explanation:
-2 times x =-2x
-2 times 4=-8
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Answer:
-7
Step-by-step explanation:
- Re-write: -3 - 4
- -3 - 4 = -7
I hope this helps!