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15-06-2021
Mathematics

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soulve a/4 + b/5 = 1 for b

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wegnerkolmp2741o wegnerkolmp2741o

15-06-2021

Answer:

b = 5 - 5/4 a

Step-by-step explanation:

a/4 + b/5 = 1

Multiply by 20 to clear the fractions

20*(a/4 + b/5) = 1*20

5a +4b = 20

Subtract 5a from each side

4b = 20 -5a

Divide by 4

4b/4 = 20/4 - 5a/4

b = 5 - 5/4 a

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