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Simplifying x + -2 * 9 = x + 4 Multiply -2 * 9 x + -18 = x + 4 Reorder the terms: -18 + x = x + 4 Reorder the terms: -18 + x = 4 + x Add '-1x' to each side of the equation. -18 + x + -1x = 4 + x + -1x Combine like terms: x + -1x = 0 -18 + 0 = 4 + x + -1x -18 = 4 + x + -1x Combine like terms: x + -1x = 0 -18 = 4 + 0 -18 = 4 Solving -18 = 4 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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