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Simplifying 7x + -21 + 1 = 2x + -25 + 5x Reorder the terms: -21 + 1 + 7x = 2x + -25 + 5x Combine like terms: -21 + 1 = -20 -20 + 7x = 2x + -25 + 5x Reorder the terms: -20 + 7x = -25 + 2x + 5x Combine like terms: 2x + 5x = 7x -20 + 7x = -25 + 7x Add '-7x' to each side of the equation. -20 + 7x + -7x = -25 + 7x + -7x Combine like terms: 7x + -7x = 0 -20 + 0 = -25 + 7x + -7x -20 = -25 + 7x + -7x Combine like terms: 7x + -7x = 0 -20 = -25 + 0 -20 = -25 Solving -20 = -25 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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