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Simplifying 18 = -4.2x + 6 Reorder the terms: 18 = 6 + -4.2x Solving 18 = 6 + -4.2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.2x' to each side of the equation. 18 + 4.2x = 6 + -4.2x + 4.2x Combine like terms: -4.2x + 4.2x = 0.0 18 + 4.2x = 6 + 0.0 18 + 4.2x = 6 Add '-18' to each side of the equation. 18 + -18 + 4.2x = 6 + -18 Combine like terms: 18 + -18 = 0 0 + 4.2x = 6 + -18 4.2x = 6 + -18 Combine like terms: 6 + -18 = -12 4.2x = -12 Divide each side by '4.2'. x = -2.857142857 Simplifying x = -2.857142857
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