Diketahui suku ketiga dan ketujuh sebuah deret hitung adalah berturut-turut 50 dan 70. Hitung nilai suku pertama, pembeda, nilai suku kesepuluh, dan jumlah keseluruhan nilai sampai suku ke sepuluh!

Solve for the first term, common difference, and sum up to the 10th term in an arithmetic sequence where the 3rd term is 50 and the 7th term is 70. This problem involves applying arithmetic sequence formulas, suitable for Grades 10-12 students.

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