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Simplifying 8r2 + 2 = 7r2 Reorder the terms: 2 + 8r2 = 7r2 Solving 2 + 8r2 = 7r2 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r2' to each side of the equation. 2 + 8r2 + -7r2 = 7r2 + -7r2 Combine like terms: 8r2 + -7r2 = 1r2 2 + 1r2 = 7r2 + -7r2 Combine like terms: 7r2 + -7r2 = 0 2 + 1r2 = 0 Add '-2' to each side of the equation. 2 + -2 + 1r2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 1r2 = 0 + -2 1r2 = 0 + -2 Combine like terms: 0 + -2 = -2 1r2 = -2 Divide each side by '1'. r2 = -2 Simplifying r2 = -2 Reorder the terms: 2 + r2 = -2 + 2 Combine like terms: -2 + 2 = 0 2 + r2 = 0 The solution to this equation could not be determined.
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