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Simplifying -1(2r + -7) = -2(r + -8) Reorder the terms: -1(-7 + 2r) = -2(r + -8) (-7 * -1 + 2r * -1) = -2(r + -8) (7 + -2r) = -2(r + -8) Reorder the terms: 7 + -2r = -2(-8 + r) 7 + -2r = (-8 * -2 + r * -2) 7 + -2r = (16 + -2r) Add '2r' to each side of the equation. 7 + -2r + 2r = 16 + -2r + 2r Combine like terms: -2r + 2r = 0 7 + 0 = 16 + -2r + 2r 7 = 16 + -2r + 2r Combine like terms: -2r + 2r = 0 7 = 16 + 0 7 = 16 Solving 7 = 16 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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