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Simplifying 2(x + -7) = x + -1(2 + -1x) Reorder the terms: 2(-7 + x) = x + -1(2 + -1x) (-7 * 2 + x * 2) = x + -1(2 + -1x) (-14 + 2x) = x + -1(2 + -1x) -14 + 2x = x + (2 * -1 + -1x * -1) -14 + 2x = x + (-2 + 1x) Reorder the terms: -14 + 2x = -2 + x + 1x Combine like terms: x + 1x = 2x -14 + 2x = -2 + 2x Add '-2x' to each side of the equation. -14 + 2x + -2x = -2 + 2x + -2x Combine like terms: 2x + -2x = 0 -14 + 0 = -2 + 2x + -2x -14 = -2 + 2x + -2x Combine like terms: 2x + -2x = 0 -14 = -2 + 0 -14 = -2 Solving -14 = -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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