johnny2596 johnny2596

04-01-2019
Mathematics

contestada

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

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wegnerkolmp2741o wegnerkolmp2741o

04-01-2019

Answer:

2S/n -a = b

Step-by-step explanation:

S=n/2 (a+b)

Multiply each side by 2

2S = n/2 *2 (a+b)

2S = n(a+b)

Divide each side by n

2S/n = n/n(a+b)

2S/n = a+b

Subtract a from each side

2S/n -a = a+b-a

2S/n -a = b

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