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Simplifying 8r + -3 = -30 + 13r Reorder the terms: -3 + 8r = -30 + 13r Solving -3 + 8r = -30 + 13r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-13r' to each side of the equation. -3 + 8r + -13r = -30 + 13r + -13r Combine like terms: 8r + -13r = -5r -3 + -5r = -30 + 13r + -13r Combine like terms: 13r + -13r = 0 -3 + -5r = -30 + 0 -3 + -5r = -30 Add '3' to each side of the equation. -3 + 3 + -5r = -30 + 3 Combine like terms: -3 + 3 = 0 0 + -5r = -30 + 3 -5r = -30 + 3 Combine like terms: -30 + 3 = -27 -5r = -27 Divide each side by '-5'. r = 5.4 Simplifying r = 5.4
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