Question

5. Solve s = n(a + 1) for a
(please help i forgot how to solve with the parenthesis)

Answer 1

a = s/n - 1, hope you get it right

Answer 2

a = s/n - 1

Explanation:

s = n(a + 1)

(switch the sides of the equation)

n(a + 1) = s

(now, divide both sides by n)

n(a + 1) = s

/n /n

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a + 1 = s/n

-1 -1 (subtract both sides by 1 now)

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a = s/n - 1