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Simplifying 12 = -4(2x + 1) Reorder the terms: 12 = -4(1 + 2x) 12 = (1 * -4 + 2x * -4) 12 = (-4 + -8x) Solving 12 = -4 + -8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8x' to each side of the equation. 12 + 8x = -4 + -8x + 8x Combine like terms: -8x + 8x = 0 12 + 8x = -4 + 0 12 + 8x = -4 Add '-12' to each side of the equation. 12 + -12 + 8x = -4 + -12 Combine like terms: 12 + -12 = 0 0 + 8x = -4 + -12 8x = -4 + -12 Combine like terms: -4 + -12 = -16 8x = -16 Divide each side by '8'. x = -2 Simplifying x = -2
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