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Simplifying -1(r + -6) = -1(r + 7) Reorder the terms: -1(-6 + r) = -1(r + 7) (-6 * -1 + r * -1) = -1(r + 7) (6 + -1r) = -1(r + 7) Reorder the terms: 6 + -1r = -1(7 + r) 6 + -1r = (7 * -1 + r * -1) 6 + -1r = (-7 + -1r) Add 'r' to each side of the equation. 6 + -1r + r = -7 + -1r + r Combine like terms: -1r + r = 0 6 + 0 = -7 + -1r + r 6 = -7 + -1r + r Combine like terms: -1r + r = 0 6 = -7 + 0 6 = -7 Solving 6 = -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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