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Simplifying 20x + 15 = 12x + -12 Reorder the terms: 15 + 20x = 12x + -12 Reorder the terms: 15 + 20x = -12 + 12x Solving 15 + 20x = -12 + 12x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12x' to each side of the equation. 15 + 20x + -12x = -12 + 12x + -12x Combine like terms: 20x + -12x = 8x 15 + 8x = -12 + 12x + -12x Combine like terms: 12x + -12x = 0 15 + 8x = -12 + 0 15 + 8x = -12 Add '-15' to each side of the equation. 15 + -15 + 8x = -12 + -15 Combine like terms: 15 + -15 = 0 0 + 8x = -12 + -15 8x = -12 + -15 Combine like terms: -12 + -15 = -27 8x = -27 Divide each side by '8'. x = -3.375 Simplifying x = -3.375
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