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Simplifying 2x + 4(2x + 7) = -42 Reorder the terms: 2x + 4(7 + 2x) = -42 2x + (7 * 4 + 2x * 4) = -42 2x + (28 + 8x) = -42 Reorder the terms: 28 + 2x + 8x = -42 Combine like terms: 2x + 8x = 10x 28 + 10x = -42 Solving 28 + 10x = -42 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 + 10x = -42 + -28 Combine like terms: 28 + -28 = 0 0 + 10x = -42 + -28 10x = -42 + -28 Combine like terms: -42 + -28 = -70 10x = -70 Divide each side by '10'. x = -7 Simplifying x = -7
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