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Simplifying 4x + -9 = 2(2x + 1) Reorder the terms: -9 + 4x = 2(2x + 1) Reorder the terms: -9 + 4x = 2(1 + 2x) -9 + 4x = (1 * 2 + 2x * 2) -9 + 4x = (2 + 4x) Add '-4x' to each side of the equation. -9 + 4x + -4x = 2 + 4x + -4x Combine like terms: 4x + -4x = 0 -9 + 0 = 2 + 4x + -4x -9 = 2 + 4x + -4x Combine like terms: 4x + -4x = 0 -9 = 2 + 0 -9 = 2 Solving -9 = 2 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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