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Simplifying ln(x) = ln(x + -5) + ln(5) Multiply ln * x lnx = ln(x + -5) + ln(5) Reorder the terms: lnx = ln(-5 + x) + ln(5) lnx = (-5 * ln + x * ln) + ln(5) lnx = (-5ln + lnx) + ln(5) Reorder the terms for easier multiplication: lnx = -5ln + lnx + 5ln Reorder the terms: lnx = -5ln + 5ln + lnx Combine like terms: -5ln + 5ln = 0 lnx = 0 + lnx lnx = lnx Add '-1lnx' to each side of the equation. lnx + -1lnx = lnx + -1lnx Combine like terms: lnx + -1lnx = 0 0 = lnx + -1lnx Combine like terms: lnx + -1lnx = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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