3^(a)=27^(b+1) and 5^(b)=25^(a-1) find a+b
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Answer:
here it is: a+b
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Step-by-step explanation:
Given 3^(a)=27^(b+1) and 5^(b)=25^(a-1) find a+b
- Given 3^a = 27^b + 1
- 3^a = 3^3 (b + 1)
- 3^a = 3^3b + 3
- So a = 3b + 3 (bases are same so exponents are equal)
- Also 5^b = 25^a – 1
- 5^b = 5^2 (a – 1)
- 5^b = 5^2a – 2
- So b = 2a – 2
- Now a = 3b + 3
- So a = 3(2a – 2) + 3
- So a = 6a – 6 + 3
- Now – 5a = - 3
- Or a = 3/5
- Now b = 2a – 2
- = 2(3/5) – 2
- Or b = - 4/5
- So a + b = 3/5 + (-4/5)
- = 3/5 – 4/5
- = - 1/5
Reference link will be
https://brainly.in/question/14671656
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