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Simplifying 27 = 4x + -81 Reorder the terms: 27 = -81 + 4x Solving 27 = -81 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. 27 + -4x = -81 + 4x + -4x Combine like terms: 4x + -4x = 0 27 + -4x = -81 + 0 27 + -4x = -81 Add '-27' to each side of the equation. 27 + -27 + -4x = -81 + -27 Combine like terms: 27 + -27 = 0 0 + -4x = -81 + -27 -4x = -81 + -27 Combine like terms: -81 + -27 = -108 -4x = -108 Divide each side by '-4'. x = 27 Simplifying x = 27
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