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Simplifying 2(x + -5) + 9 = 2x + 7 Reorder the terms: 2(-5 + x) + 9 = 2x + 7 (-5 * 2 + x * 2) + 9 = 2x + 7 (-10 + 2x) + 9 = 2x + 7 Reorder the terms: -10 + 9 + 2x = 2x + 7 Combine like terms: -10 + 9 = -1 -1 + 2x = 2x + 7 Reorder the terms: -1 + 2x = 7 + 2x Add '-2x' to each side of the equation. -1 + 2x + -2x = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 -1 + 0 = 7 + 2x + -2x -1 = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 -1 = 7 + 0 -1 = 7 Solving -1 = 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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