Math Question

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The term b is given by the formula.
b=a+(n-1)d. Solve for n in terms of a, b, and d.

Guest Oct 24, 2013

Guest · Answer 1 · 2013-10-25T12:30:26

b = a + (n - 1)d

b - a = (n - 1)d

(b - a)/d = n - 1

((b - a)/d) + 1 = n