Final answer:
The poll tax was used to stop black citizens from voting by imposing a fee that many of them couldn't afford.
Step-by-step explanation:
The poll tax was used as a tool to disenfranchise black citizens and prevent them from exercising their right to vote. This tax was a fee imposed on individuals who wished to vote, and it disproportionately affected black Americans, since many of them lived in poverty due to systemic racism. By requiring individuals to pay a tax in order to vote, many black citizens were unable to afford it and therefore were unable to participate in the democratic process.
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