This is parallelogram so
8=2x
X=4
Or
3x=12
So again we will find x=4
Into? Is hard to answer without the rest of the problem
Answer:

Step-by-step explanation:
y = 18 + 3x²
- 18 - 18
__________

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Only numbers possible would be five and zero
Answer:
= to
Step-by-step explanation: