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Simplifying 21 = -1.5(x + -2) Reorder the terms: 21 = -1.5(-2 + x) 21 = (-2 * -1.5 + x * -1.5) 21 = (3 + -1.5x) Solving 21 = 3 + -1.5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5x' to each side of the equation. 21 + 1.5x = 3 + -1.5x + 1.5x Combine like terms: -1.5x + 1.5x = 0.0 21 + 1.5x = 3 + 0.0 21 + 1.5x = 3 Add '-21' to each side of the equation. 21 + -21 + 1.5x = 3 + -21 Combine like terms: 21 + -21 = 0 0 + 1.5x = 3 + -21 1.5x = 3 + -21 Combine like terms: 3 + -21 = -18 1.5x = -18 Divide each side by '1.5'. x = -12 Simplifying x = -12
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