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Simplifying -2(x + 4) = -2x + 9 Reorder the terms: -2(4 + x) = -2x + 9 (4 * -2 + x * -2) = -2x + 9 (-8 + -2x) = -2x + 9 Reorder the terms: -8 + -2x = 9 + -2x Add '2x' to each side of the equation. -8 + -2x + 2x = 9 + -2x + 2x Combine like terms: -2x + 2x = 0 -8 + 0 = 9 + -2x + 2x -8 = 9 + -2x + 2x Combine like terms: -2x + 2x = 0 -8 = 9 + 0 -8 = 9 Solving -8 = 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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