Question

4^x=5^y=20^z, then find z​

Answer 1

Answer:

Note that this is only true, when and unfortunately , so the only valid value for z is 0.

The expression would be far more interesting, if your equations were:

where

For example, if the equation was:

Then, x = 4 and y = 2, satisfy the condition , so from above, z = 4/3 and we know that .

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