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Simplifying 42 = 2(x + -1) Reorder the terms: 42 = 2(-1 + x) 42 = (-1 * 2 + x * 2) 42 = (-2 + 2x) Solving 42 = -2 + 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. 42 + -2x = -2 + 2x + -2x Combine like terms: 2x + -2x = 0 42 + -2x = -2 + 0 42 + -2x = -2 Add '-42' to each side of the equation. 42 + -42 + -2x = -2 + -42 Combine like terms: 42 + -42 = 0 0 + -2x = -2 + -42 -2x = -2 + -42 Combine like terms: -2 + -42 = -44 -2x = -44 Divide each side by '-2'. x = 22 Simplifying x = 22
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