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Simplifying -4x + -2(-4x + -14) = -20 Reorder the terms: -4x + -2(-14 + -4x) = -20 -4x + (-14 * -2 + -4x * -2) = -20 -4x + (28 + 8x) = -20 Reorder the terms: 28 + -4x + 8x = -20 Combine like terms: -4x + 8x = 4x 28 + 4x = -20 Solving 28 + 4x = -20 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + 4x = -20 + -28 Combine like terms: 28 + -28 = 0 0 + 4x = -20 + -28 4x = -20 + -28 Combine like terms: -20 + -28 = -48 4x = -48 Divide each side by '4'. x = -12 Simplifying x = -12
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