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Simplifying 3(4x + 4) + x + -4 = -122 Reorder the terms: 3(4 + 4x) + x + -4 = -122 (4 * 3 + 4x * 3) + x + -4 = -122 (12 + 12x) + x + -4 = -122 Reorder the terms: 12 + -4 + 12x + x = -122 Combine like terms: 12 + -4 = 8 8 + 12x + x = -122 Combine like terms: 12x + x = 13x 8 + 13x = -122 Solving 8 + 13x = -122 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + 13x = -122 + -8 Combine like terms: 8 + -8 = 0 0 + 13x = -122 + -8 13x = -122 + -8 Combine like terms: -122 + -8 = -130 13x = -130 Divide each side by '13'. x = -10 Simplifying x = -10
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