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Simplifying 81 = 3(2x) Remove parenthesis around (2x) 81 = 3 * 2x Multiply 3 * 2 81 = 6x Solving 81 = 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 81 + -6x = 6x + -6x Combine like terms: 6x + -6x = 0 81 + -6x = 0 Add '-81' to each side of the equation. 81 + -81 + -6x = 0 + -81 Combine like terms: 81 + -81 = 0 0 + -6x = 0 + -81 -6x = 0 + -81 Combine like terms: 0 + -81 = -81 -6x = -81 Divide each side by '-6'. x = 13.5 Simplifying x = 13.5
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