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Simplifying 243 = 9(9x) Remove parenthesis around (9x) 243 = 9 * 9x Multiply 9 * 9 243 = 81x Solving 243 = 81x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-81x' to each side of the equation. 243 + -81x = 81x + -81x Combine like terms: 81x + -81x = 0 243 + -81x = 0 Add '-243' to each side of the equation. 243 + -243 + -81x = 0 + -243 Combine like terms: 243 + -243 = 0 0 + -81x = 0 + -243 -81x = 0 + -243 Combine like terms: 0 + -243 = -243 -81x = -243 Divide each side by '-81'. x = 3 Simplifying x = 3
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