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