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Simplifying 42x + 81 = 100 Reorder the terms: 81 + 42x = 100 Solving 81 + 42x = 100 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-81' to each side of the equation. 81 + -81 + 42x = 100 + -81 Combine like terms: 81 + -81 = 0 0 + 42x = 100 + -81 42x = 100 + -81 Combine like terms: 100 + -81 = 19 42x = 19 Divide each side by '42'. x = 0.4523809524 Simplifying x = 0.4523809524
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