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Simplifying -7w + -20 = -1(7w + 7) Reorder the terms: -20 + -7w = -1(7w + 7) Reorder the terms: -20 + -7w = -1(7 + 7w) -20 + -7w = (7 * -1 + 7w * -1) -20 + -7w = (-7 + -7w) Add '7w' to each side of the equation. -20 + -7w + 7w = -7 + -7w + 7w Combine like terms: -7w + 7w = 0 -20 + 0 = -7 + -7w + 7w -20 = -7 + -7w + 7w Combine like terms: -7w + 7w = 0 -20 = -7 + 0 -20 = -7 Solving -20 = -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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