Question

Answer no. 3....... ​

Answer 1

Step-by-step explanation:

anything power zero is 1

so ,( 2/7)^3x=1

means 3x=0

x=0 is the ans

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Answer 2

Answer:

x=0

Step-by-step explanation:

Any number raise to power 0 is 1

So,

(2/7)^3x = 1

Equating the powers

3x = x^0

3x=0

x=0