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Simplifying 2[2k + -1] = 4[k + -2] Reorder the terms: 2[-1 + 2k] = 4[k + -2] [-1 * 2 + 2k * 2] = 4[k + -2] [-2 + 4k] = 4[k + -2] Reorder the terms: -2 + 4k = 4[-2 + k] -2 + 4k = [-2 * 4 + k * 4] -2 + 4k = [-8 + 4k] Add '-4k' to each side of the equation. -2 + 4k + -4k = -8 + 4k + -4k Combine like terms: 4k + -4k = 0 -2 + 0 = -8 + 4k + -4k -2 = -8 + 4k + -4k Combine like terms: 4k + -4k = 0 -2 = -8 + 0 -2 = -8 Solving -2 = -8 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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