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Simplifying -2 + (9 + -1k) = -1(7 + k) Remove parenthesis around (9 + -1k) -2 + 9 + -1k = -1(7 + k) Combine like terms: -2 + 9 = 7 7 + -1k = -1(7 + k) 7 + -1k = (7 * -1 + k * -1) 7 + -1k = (-7 + -1k) Add 'k' to each side of the equation. 7 + -1k + k = -7 + -1k + k Combine like terms: -1k + k = 0 7 + 0 = -7 + -1k + k 7 = -7 + -1k + k Combine like terms: -1k + k = 0 7 = -7 + 0 7 = -7 Solving 7 = -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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