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Simplifying -12x + -13 = -12x + -1(-12) Reorder the terms: -13 + -12x = -12x + -1(-12) Multiply -1 * -12 -13 + -12x = -12x + 12 Reorder the terms: -13 + -12x = 12 + -12x Add '12x' to each side of the equation. -13 + -12x + 12x = 12 + -12x + 12x Combine like terms: -12x + 12x = 0 -13 + 0 = 12 + -12x + 12x -13 = 12 + -12x + 12x Combine like terms: -12x + 12x = 0 -13 = 12 + 0 -13 = 12 Solving -13 = 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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