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Simplifying x + -50 = 130 + -1x Reorder the terms: -50 + x = 130 + -1x Solving -50 + x = 130 + -1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'x' to each side of the equation. -50 + x + x = 130 + -1x + x Combine like terms: x + x = 2x -50 + 2x = 130 + -1x + x Combine like terms: -1x + x = 0 -50 + 2x = 130 + 0 -50 + 2x = 130 Add '50' to each side of the equation. -50 + 50 + 2x = 130 + 50 Combine like terms: -50 + 50 = 0 0 + 2x = 130 + 50 2x = 130 + 50 Combine like terms: 130 + 50 = 180 2x = 180 Divide each side by '2'. x = 90 Simplifying x = 90
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