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Simplifying 4(x + 7) = 2(x + -1) Reorder the terms: 4(7 + x) = 2(x + -1) (7 * 4 + x * 4) = 2(x + -1) (28 + 4x) = 2(x + -1) Reorder the terms: 28 + 4x = 2(-1 + x) 28 + 4x = (-1 * 2 + x * 2) 28 + 4x = (-2 + 2x) Solving 28 + 4x = -2 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 28 + 4x + -2x = -2 + 2x + -2x Combine like terms: 4x + -2x = 2x 28 + 2x = -2 + 2x + -2x Combine like terms: 2x + -2x = 0 28 + 2x = -2 + 0 28 + 2x = -2 Add '-28' to each side of the equation. 28 + -28 + 2x = -2 + -28 Combine like terms: 28 + -28 = 0 0 + 2x = -2 + -28 2x = -2 + -28 Combine like terms: -2 + -28 = -30 2x = -30 Divide each side by '2'. x = -15 Simplifying x = -15
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