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Solve the system of equations.
-x + 2y + z + 6w = 2 x + y + 2z + w = 2
X + y + z + 2w = -1
September
The ninth month of the year in the Gregorian calendar, often associated with the beginning of the academic year in many countries.
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Placing funds into a bank account or making an investment where the money is held under a specific condition.
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The worth of a good or service determined by its ability to satisfy needs or wants; measured by the maximum amount a consumer is willing to pay.
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The proportion of a total amount of money that is required as payment for borrowing it, usually described as a yearly percentage rate.
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