Final answer:
The first form/system of government used in the United States was the Articles of Confederation.
Step-by-step explanation:
The first form/system of government used in the United States was the Articles of Confederation.
The Articles of Confederation served as the United States' first constitution from 1781 to 1789. It established a weak central government that gave more power to the individual states. This form of government lacked a strong executive branch and had limited ability to levy taxes and regulate commerce.
Despite its shortcomings, the Articles of Confederation provided a foundation for the development of a stronger federal government under the United States Constitution, which replaced it in 1789.
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