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Simplifying -4x + 7x + -9 = 3(x + -6) + -3 Reorder the terms: -9 + -4x + 7x = 3(x + -6) + -3 Combine like terms: -4x + 7x = 3x -9 + 3x = 3(x + -6) + -3 Reorder the terms: -9 + 3x = 3(-6 + x) + -3 -9 + 3x = (-6 * 3 + x * 3) + -3 -9 + 3x = (-18 + 3x) + -3 Reorder the terms: -9 + 3x = -18 + -3 + 3x Combine like terms: -18 + -3 = -21 -9 + 3x = -21 + 3x Add '-3x' to each side of the equation. -9 + 3x + -3x = -21 + 3x + -3x Combine like terms: 3x + -3x = 0 -9 + 0 = -21 + 3x + -3x -9 = -21 + 3x + -3x Combine like terms: 3x + -3x = 0 -9 = -21 + 0 -9 = -21 Solving -9 = -21 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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