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Simplifying 13x = (4 + x) * 2 + -3x + -1(4 + -1x) * 2 Reorder the terms for easier multiplication: 13x = 2(4 + x) + -3x + -1(4 + -1x) * 2 13x = (4 * 2 + x * 2) + -3x + -1(4 + -1x) * 2 13x = (8 + 2x) + -3x + -1(4 + -1x) * 2 Reorder the terms for easier multiplication: 13x = 8 + 2x + -3x + -1 * 2(4 + -1x) Multiply -1 * 2 13x = 8 + 2x + -3x + -2(4 + -1x) 13x = 8 + 2x + -3x + (4 * -2 + -1x * -2) 13x = 8 + 2x + -3x + (-8 + 2x) Reorder the terms: 13x = 8 + -8 + 2x + -3x + 2x Combine like terms: 8 + -8 = 0 13x = 0 + 2x + -3x + 2x 13x = 2x + -3x + 2x Combine like terms: 2x + -3x = -1x 13x = -1x + 2x Combine like terms: -1x + 2x = 1x 13x = 1x Solving 13x = 1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 13x + -1x = 1x + -1x Combine like terms: 13x + -1x = 12x 12x = 1x + -1x Combine like terms: 1x + -1x = 0 12x = 0 Divide each side by '12'. x = 0 Simplifying x = 0
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