SOLUTION: Solve 7^-x+3=50

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Question 481248: Solve 7^-x+3=50
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
I think your equation is:
7%5E%28-x%29%2B3=50
if so:
7%5E%28-x%29%2B3=50
7%5E%28-x%29=47
-x+=+log%287%2C47%29
-x+=+log%2847%29%2Flog%287%29
x+=+-log%2847%29%2Flog%287%29
x+=+-1.979
.
.
OR, if your equation was:
7%5E%28-x%2B3%29=50
if so:
-x%2B3=log%287%2C50%29
-x=log%287%2C50%29+-+3
x=+3+-+log%287%2C50%29
x=+3+-+log%2850%29%2Flog%287%29
x=+0.990