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Simplifying 10 + 3r = -2r Solving 10 + 3r = -2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2r' to each side of the equation. 10 + 3r + 2r = -2r + 2r Combine like terms: 3r + 2r = 5r 10 + 5r = -2r + 2r Combine like terms: -2r + 2r = 0 10 + 5r = 0 Add '-10' to each side of the equation. 10 + -10 + 5r = 0 + -10 Combine like terms: 10 + -10 = 0 0 + 5r = 0 + -10 5r = 0 + -10 Combine like terms: 0 + -10 = -10 5r = -10 Divide each side by '5'. r = -2 Simplifying r = -2
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