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Simplifying r + -2 + 3r = 5r Reorder the terms: -2 + r + 3r = 5r Combine like terms: r + 3r = 4r -2 + 4r = 5r Solving -2 + 4r = 5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5r' to each side of the equation. -2 + 4r + -5r = 5r + -5r Combine like terms: 4r + -5r = -1r -2 + -1r = 5r + -5r Combine like terms: 5r + -5r = 0 -2 + -1r = 0 Add '2' to each side of the equation. -2 + 2 + -1r = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1r = 0 + 2 -1r = 0 + 2 Combine like terms: 0 + 2 = 2 -1r = 2 Divide each side by '-1'. r = -2 Simplifying r = -2
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