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Simplifying 12 = -1(3 + -2x) 12 = (3 * -1 + -2x * -1) 12 = (-3 + 2x) Solving 12 = -3 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 12 + -2x = -3 + 2x + -2x Combine like terms: 2x + -2x = 0 12 + -2x = -3 + 0 12 + -2x = -3 Add '-12' to each side of the equation. 12 + -12 + -2x = -3 + -12 Combine like terms: 12 + -12 = 0 0 + -2x = -3 + -12 -2x = -3 + -12 Combine like terms: -3 + -12 = -15 -2x = -15 Divide each side by '-2'. x = 7.5 Simplifying x = 7.5
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