Final answer:
Macbeth's plan after meeting with the weird sisters is to murder King Duncan and take the throne.
Step-by-step explanation:
After meeting with the weird sisters, Macbeth devises a plan to murder King Duncan and take the throne. Encouraged by the witches' prophecy that he will become King, Macbeth becomes consumed by ambition and begins to contemplate the means necessary to achieve his goal. He shares his plan with his wife, Lady Macbeth, who further fuels his desire for power. Together, they plot the murder of Duncan, setting off a chain of events that leads to their downfall.
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