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Simplifying 5x + -12 = 5x + 15 Reorder the terms: -12 + 5x = 5x + 15 Reorder the terms: -12 + 5x = 15 + 5x Add '-5x' to each side of the equation. -12 + 5x + -5x = 15 + 5x + -5x Combine like terms: 5x + -5x = 0 -12 + 0 = 15 + 5x + -5x -12 = 15 + 5x + -5x Combine like terms: 5x + -5x = 0 -12 = 15 + 0 -12 = 15 Solving -12 = 15 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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