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Simplifying 7x + 4 = -4x + -128 Reorder the terms: 4 + 7x = -4x + -128 Reorder the terms: 4 + 7x = -128 + -4x Solving 4 + 7x = -128 + -4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4x' to each side of the equation. 4 + 7x + 4x = -128 + -4x + 4x Combine like terms: 7x + 4x = 11x 4 + 11x = -128 + -4x + 4x Combine like terms: -4x + 4x = 0 4 + 11x = -128 + 0 4 + 11x = -128 Add '-4' to each side of the equation. 4 + -4 + 11x = -128 + -4 Combine like terms: 4 + -4 = 0 0 + 11x = -128 + -4 11x = -128 + -4 Combine like terms: -128 + -4 = -132 11x = -132 Divide each side by '11'. x = -12 Simplifying x = -12
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