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Simplifying 7x + -6 + 5x = 12(x + -3) Reorder the terms: -6 + 7x + 5x = 12(x + -3) Combine like terms: 7x + 5x = 12x -6 + 12x = 12(x + -3) Reorder the terms: -6 + 12x = 12(-3 + x) -6 + 12x = (-3 * 12 + x * 12) -6 + 12x = (-36 + 12x) Add '-12x' to each side of the equation. -6 + 12x + -12x = -36 + 12x + -12x Combine like terms: 12x + -12x = 0 -6 + 0 = -36 + 12x + -12x -6 = -36 + 12x + -12x Combine like terms: 12x + -12x = 0 -6 = -36 + 0 -6 = -36 Solving -6 = -36 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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