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Simplifying 81 * 3 = n Multiply 81 * 3 243 = n Solving 243 = n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1n' to each side of the equation. 243 + -1n = n + -1n Combine like terms: n + -1n = 0 243 + -1n = 0 Add '-243' to each side of the equation. 243 + -243 + -1n = 0 + -243 Combine like terms: 243 + -243 = 0 0 + -1n = 0 + -243 -1n = 0 + -243 Combine like terms: 0 + -243 = -243 -1n = -243 Divide each side by '-1'. n = 243 Simplifying n = 243
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