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Abbie Sullivan
Mathematics
18 September, 21:05
How do you solve this problem
7 = ln (x+5)
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Thompson
18 September, 21:21
0
x = 1091.63315843
Setting Up:
7 = ln (x + 5)
ln translates to "log" with an "e" as the base or subscript (a small "e" at the bottom right of the "g" in log).
You take the base of the log and put it to the power of "7" ("7" is the natural log of (x + 5) in this problem).
The value of which the logarithm is calculated is set equal to the base of the logarithm to the power of the calculated logarithm of the value.
e^7 = x + 5
Solving:
e = 2.71828182846
Natural logarithms are logarithms to the base of the constant 'e'.
e^7 = x + 5 (simplify e^7)
1096.63315843 = x + 5
Subtract 5 from each side.
1091.63315843 = x
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