Question

Solve the following for the indicated variable:

A
=
a
+
(
n
−
1
)
d
A
=
a
+
(
n
-
1
)
d
for n

Answer 1

Explanation:

A = a + (n - 1) d

A - a = (n - 1)d

(A - a)/d = n - 1

n = 1 + (A - a)/d