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Simplifying -4x + 1 = 20 + -4x Reorder the terms: 1 + -4x = 20 + -4x Add '4x' to each side of the equation. 1 + -4x + 4x = 20 + -4x + 4x Combine like terms: -4x + 4x = 0 1 + 0 = 20 + -4x + 4x 1 = 20 + -4x + 4x Combine like terms: -4x + 4x = 0 1 = 20 + 0 1 = 20 Solving 1 = 20 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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