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Simplifying -15 + -1x = 12 + -2x Solving -15 + -1x = 12 + -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. -15 + -1x + 2x = 12 + -2x + 2x Combine like terms: -1x + 2x = 1x -15 + 1x = 12 + -2x + 2x Combine like terms: -2x + 2x = 0 -15 + 1x = 12 + 0 -15 + 1x = 12 Add '15' to each side of the equation. -15 + 15 + 1x = 12 + 15 Combine like terms: -15 + 15 = 0 0 + 1x = 12 + 15 1x = 12 + 15 Combine like terms: 12 + 15 = 27 1x = 27 Divide each side by '1'. x = 27 Simplifying x = 27
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