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Simplifying 9x + -4 = 9(x + 2) Reorder the terms: -4 + 9x = 9(x + 2) Reorder the terms: -4 + 9x = 9(2 + x) -4 + 9x = (2 * 9 + x * 9) -4 + 9x = (18 + 9x) Add '-9x' to each side of the equation. -4 + 9x + -9x = 18 + 9x + -9x Combine like terms: 9x + -9x = 0 -4 + 0 = 18 + 9x + -9x -4 = 18 + 9x + -9x Combine like terms: 9x + -9x = 0 -4 = 18 + 0 -4 = 18 Solving -4 = 18 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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