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Simplifying 4 + 0.3r = r + -8 Reorder the terms: 4 + 0.3r = -8 + r Solving 4 + 0.3r = -8 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. 4 + 0.3r + -1r = -8 + r + -1r Combine like terms: 0.3r + -1r = -0.7r 4 + -0.7r = -8 + r + -1r Combine like terms: r + -1r = 0 4 + -0.7r = -8 + 0 4 + -0.7r = -8 Add '-4' to each side of the equation. 4 + -4 + -0.7r = -8 + -4 Combine like terms: 4 + -4 = 0 0 + -0.7r = -8 + -4 -0.7r = -8 + -4 Combine like terms: -8 + -4 = -12 -0.7r = -12 Divide each side by '-0.7'. r = 17.14285714 Simplifying r = 17.14285714
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