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Simplifying -8r + 2 = -7r Reorder the terms: 2 + -8r = -7r Solving 2 + -8r = -7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7r' to each side of the equation. 2 + -8r + 7r = -7r + 7r Combine like terms: -8r + 7r = -1r 2 + -1r = -7r + 7r Combine like terms: -7r + 7r = 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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