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Simplifying -5x + 7 = -5x + 12 Reorder the terms: 7 + -5x = -5x + 12 Reorder the terms: 7 + -5x = 12 + -5x Add '5x' to each side of the equation. 7 + -5x + 5x = 12 + -5x + 5x Combine like terms: -5x + 5x = 0 7 + 0 = 12 + -5x + 5x 7 = 12 + -5x + 5x Combine like terms: -5x + 5x = 0 7 = 12 + 0 7 = 12 Solving 7 = 12 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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