Question

S=n/2(a+l) solve for a

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85 Answers

1. Start with the equation: S = \frac{n}{2} (a + l)

2. Multiply both sides by 2 to get rid of the fraction:2S = n (a + l)

3. Divide both sides byn to isolate \(a + l\): \frac{2S}{n} = a + l

4. Subtractl from both sides to solve for a : a = \frac{2S}{n} - l

So the solution isa = \frac{2S}{n} - l .

2. Multiply both sides by 2 to get rid of the fraction:

3. Divide both sides by

4. Subtract

So the solution is

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