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Simplifying 5r + 2 = 3r + -1(4 + -2r) Reorder the terms: 2 + 5r = 3r + -1(4 + -2r) 2 + 5r = 3r + (4 * -1 + -2r * -1) 2 + 5r = 3r + (-4 + 2r) Reorder the terms: 2 + 5r = -4 + 3r + 2r Combine like terms: 3r + 2r = 5r 2 + 5r = -4 + 5r Add '-5r' to each side of the equation. 2 + 5r + -5r = -4 + 5r + -5r Combine like terms: 5r + -5r = 0 2 + 0 = -4 + 5r + -5r 2 = -4 + 5r + -5r Combine like terms: 5r + -5r = 0 2 = -4 + 0 2 = -4 Solving 2 = -4 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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