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Simplifying 7(8k + -7) = 8(7k + -7) Reorder the terms: 7(-7 + 8k) = 8(7k + -7) (-7 * 7 + 8k * 7) = 8(7k + -7) (-49 + 56k) = 8(7k + -7) Reorder the terms: -49 + 56k = 8(-7 + 7k) -49 + 56k = (-7 * 8 + 7k * 8) -49 + 56k = (-56 + 56k) Add '-56k' to each side of the equation. -49 + 56k + -56k = -56 + 56k + -56k Combine like terms: 56k + -56k = 0 -49 + 0 = -56 + 56k + -56k -49 = -56 + 56k + -56k Combine like terms: 56k + -56k = 0 -49 = -56 + 0 -49 = -56 Solving -49 = -56 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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