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Simplifying 8.28 + -2r = 4r Solving 8.28 + -2r = 4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4r' to each side of the equation. 8.28 + -2r + -4r = 4r + -4r Combine like terms: -2r + -4r = -6r 8.28 + -6r = 4r + -4r Combine like terms: 4r + -4r = 0 8.28 + -6r = 0 Add '-8.28' to each side of the equation. 8.28 + -8.28 + -6r = 0 + -8.28 Combine like terms: 8.28 + -8.28 = 0.00 0.00 + -6r = 0 + -8.28 -6r = 0 + -8.28 Combine like terms: 0 + -8.28 = -8.28 -6r = -8.28 Divide each side by '-6'. r = 1.38 Simplifying r = 1.38
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