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Simplifying 487 = x + -42 Reorder the terms: 487 = -42 + x Solving 487 = -42 + x 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. 487 + -1x = -42 + x + -1x Combine like terms: x + -1x = 0 487 + -1x = -42 + 0 487 + -1x = -42 Add '-487' to each side of the equation. 487 + -487 + -1x = -42 + -487 Combine like terms: 487 + -487 = 0 0 + -1x = -42 + -487 -1x = -42 + -487 Combine like terms: -42 + -487 = -529 -1x = -529 Divide each side by '-1'. x = 529 Simplifying x = 529
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