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Simplifying -42 + 20 = -2x + 13 Combine like terms: -42 + 20 = -22 -22 = -2x + 13 Reorder the terms: -22 = 13 + -2x Solving -22 = 13 + -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. -22 + 2x = 13 + -2x + 2x Combine like terms: -2x + 2x = 0 -22 + 2x = 13 + 0 -22 + 2x = 13 Add '22' to each side of the equation. -22 + 22 + 2x = 13 + 22 Combine like terms: -22 + 22 = 0 0 + 2x = 13 + 22 2x = 13 + 22 Combine like terms: 13 + 22 = 35 2x = 35 Divide each side by '2'. x = 17.5 Simplifying x = 17.5
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