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Simplifying 4.2(x + 2) = 12.6 Reorder the terms: 4.2(2 + x) = 12.6 (2 * 4.2 + x * 4.2) = 12.6 (8.4 + 4.2x) = 12.6 Solving 8.4 + 4.2x = 12.6 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.4' to each side of the equation. 8.4 + -8.4 + 4.2x = 12.6 + -8.4 Combine like terms: 8.4 + -8.4 = 0.0 0.0 + 4.2x = 12.6 + -8.4 4.2x = 12.6 + -8.4 Combine like terms: 12.6 + -8.4 = 4.2 4.2x = 4.2 Divide each side by '4.2'. x = 1 Simplifying x = 1
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