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Simplifying 7r = 3(r + -2) Reorder the terms: 7r = 3(-2 + r) 7r = (-2 * 3 + r * 3) 7r = (-6 + 3r) Solving 7r = -6 + 3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3r' to each side of the equation. 7r + -3r = -6 + 3r + -3r Combine like terms: 7r + -3r = 4r 4r = -6 + 3r + -3r Combine like terms: 3r + -3r = 0 4r = -6 + 0 4r = -6 Divide each side by '4'. r = -1.5 Simplifying r = -1.5
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