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Simplifying (2x + -4) = (2x + -9) Reorder the terms: (-4 + 2x) = (2x + -9) Remove parenthesis around (-4 + 2x) -4 + 2x = (2x + -9) Reorder the terms: -4 + 2x = (-9 + 2x) Remove parenthesis around (-9 + 2x) -4 + 2x = -9 + 2x Add '-2x' to each side of the equation. -4 + 2x + -2x = -9 + 2x + -2x Combine like terms: 2x + -2x = 0 -4 + 0 = -9 + 2x + -2x -4 = -9 + 2x + -2x Combine like terms: 2x + -2x = 0 -4 = -9 + 0 -4 = -9 Solving -4 = -9 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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