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