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Simplifying X + 12 = 2X + -8 Reorder the terms: 12 + X = 2X + -8 Reorder the terms: 12 + X = -8 + 2X Solving 12 + X = -8 + 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. 12 + X + -2X = -8 + 2X + -2X Combine like terms: X + -2X = -1X 12 + -1X = -8 + 2X + -2X Combine like terms: 2X + -2X = 0 12 + -1X = -8 + 0 12 + -1X = -8 Add '-12' to each side of the equation. 12 + -12 + -1X = -8 + -12 Combine like terms: 12 + -12 = 0 0 + -1X = -8 + -12 -1X = -8 + -12 Combine like terms: -8 + -12 = -20 -1X = -20 Divide each side by '-1'. X = 20 Simplifying X = 20
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