2 years ago

Solve for x 27=9^x-1

Mathematics

1 answer:

Galina-37 [17]2 years ago

4 0

27 = 9^x-1

3^3 = 9^x-1

3^3 = 3^2(x-1)

3 = 2 (x-1)

1.5 = x-1

x = 2.5

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