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Simplifying 3 + -5x + -15 = 6 + -5x + 12 Reorder the terms: 3 + -15 + -5x = 6 + -5x + 12 Combine like terms: 3 + -15 = -12 -12 + -5x = 6 + -5x + 12 Reorder the terms: -12 + -5x = 6 + 12 + -5x Combine like terms: 6 + 12 = 18 -12 + -5x = 18 + -5x Add '5x' to each side of the equation. -12 + -5x + 5x = 18 + -5x + 5x Combine like terms: -5x + 5x = 0 -12 + 0 = 18 + -5x + 5x -12 = 18 + -5x + 5x Combine like terms: -5x + 5x = 0 -12 = 18 + 0 -12 = 18 Solving -12 = 18 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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