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Simplifying 7r + -3 = 8r + -8 Reorder the terms: -3 + 7r = 8r + -8 Reorder the terms: -3 + 7r = -8 + 8r Solving -3 + 7r = -8 + 8r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-8r' to each side of the equation. -3 + 7r + -8r = -8 + 8r + -8r Combine like terms: 7r + -8r = -1r -3 + -1r = -8 + 8r + -8r Combine like terms: 8r + -8r = 0 -3 + -1r = -8 + 0 -3 + -1r = -8 Add '3' to each side of the equation. -3 + 3 + -1r = -8 + 3 Combine like terms: -3 + 3 = 0 0 + -1r = -8 + 3 -1r = -8 + 3 Combine like terms: -8 + 3 = -5 -1r = -5 Divide each side by '-1'. r = 5 Simplifying r = 5
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