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Simplifying ln(3x) + 4 = 21 Remove parenthesis around (3x) ln * 3x + 4 = 21 Reorder the terms for easier multiplication: 3ln * x + 4 = 21 Multiply ln * x 3lnx + 4 = 21 Reorder the terms: 4 + 3lnx = 21 Solving 4 + 3lnx = 21 Solving for variable 'l'. Move all terms containing l to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3lnx = 21 + -4 Combine like terms: 4 + -4 = 0 0 + 3lnx = 21 + -4 3lnx = 21 + -4 Combine like terms: 21 + -4 = 17 3lnx = 17 Divide each side by '3nx'. l = 5.666666667n-1x-1 Simplifying l = 5.666666667n-1x-1
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