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Simplifying 2(x + 9) + 4 = 2x + 7 Reorder the terms: 2(9 + x) + 4 = 2x + 7 (9 * 2 + x * 2) + 4 = 2x + 7 (18 + 2x) + 4 = 2x + 7 Reorder the terms: 18 + 4 + 2x = 2x + 7 Combine like terms: 18 + 4 = 22 22 + 2x = 2x + 7 Reorder the terms: 22 + 2x = 7 + 2x Add '-2x' to each side of the equation. 22 + 2x + -2x = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 22 + 0 = 7 + 2x + -2x 22 = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 22 = 7 + 0 22 = 7 Solving 22 = 7 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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