SOLUTION: what is the answer for log4(25x)=7

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Question 139768: what is the answer for log4(25x)=7
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
y=log%28b%2C%28x%29%29 means that x=b%5Ey,

So
log%284%2C%2825x%29%29=7 means 25x=4%5E7. The rest is just calculator work.