An instructor wants to write a quiz with 9 questions where each question is worth 3, 4, or 6 points based on difficulty. He wants the number of 3-point questions to be 1 more than the number of 6-point questions, and he wants the quiz to be worth a total of 35 points. How many 3, 4, and 6-point questions will there be? write a 3 varible system of equation

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