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Simplifying -2(x + 21) = -2x + 1 Reorder the terms: -2(21 + x) = -2x + 1 (21 * -2 + x * -2) = -2x + 1 (-42 + -2x) = -2x + 1 Reorder the terms: -42 + -2x = 1 + -2x Add '2x' to each side of the equation. -42 + -2x + 2x = 1 + -2x + 2x Combine like terms: -2x + 2x = 0 -42 + 0 = 1 + -2x + 2x -42 = 1 + -2x + 2x Combine like terms: -2x + 2x = 0 -42 = 1 + 0 -42 = 1 Solving -42 = 1 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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