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Simplifying -7 + -2r = -2(r + 5) Reorder the terms: -7 + -2r = -2(5 + r) -7 + -2r = (5 * -2 + r * -2) -7 + -2r = (-10 + -2r) Add '2r' to each side of the equation. -7 + -2r + 2r = -10 + -2r + 2r Combine like terms: -2r + 2r = 0 -7 + 0 = -10 + -2r + 2r -7 = -10 + -2r + 2r Combine like terms: -2r + 2r = 0 -7 = -10 + 0 -7 = -10 Solving -7 = -10 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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