Math Problem Statement
Find the first term (a) of an arithmetic progression given that the sum of the first 7 terms (S₇) is 635, the common difference (d) is 2, and the number of terms (n) is 7.
Solution
The
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Math Problem Analysis
Mathematical Concepts
Arithmetic Progression
Summation
Formulas
Sum of n terms of an arithmetic progression: Sₙ = n/2 * (2a + (n-1)d)
Theorems
Arithmetic series summation theorem
Suitable Grade Level
Grade 8-10
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