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Simplifying 2(x + 7) = -1(-2x + 4) Reorder the terms: 2(7 + x) = -1(-2x + 4) (7 * 2 + x * 2) = -1(-2x + 4) (14 + 2x) = -1(-2x + 4) Reorder the terms: 14 + 2x = -1(4 + -2x) 14 + 2x = (4 * -1 + -2x * -1) 14 + 2x = (-4 + 2x) Add '-2x' to each side of the equation. 14 + 2x + -2x = -4 + 2x + -2x Combine like terms: 2x + -2x = 0 14 + 0 = -4 + 2x + -2x 14 = -4 + 2x + -2x Combine like terms: 2x + -2x = 0 14 = -4 + 0 14 = -4 Solving 14 = -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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