It is a logarithmic equation with one variable x.
Although the question does not ask for the value of x, if the logs are to the base 10, then x = 106 or 1 million.
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You have, y = 6 + log x anti log of it, 10y = (106) x
log(x) + 4 - log(6) = 1 so log(x) + 4 + log(1/6) = 1 Take exponents to the base 10 and remember that 10log(x) = x: x * 104 * 1/6 = 10 x = 6/1000 or 0.006
log x = -4 => x = 10-4 = 0.0001
log(x) = 3x = 10log(x) = 103 = 1,000
e-x = 6Take the natural log of both sides:ln(e-x) = ln(6)-x = ln(6)x = -ln(6)So x = -ln(6), which is about -1.792.