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Simplifying 4 + -2r = r Solving 4 + -2r = 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 + -2r + -1r = r + -1r Combine like terms: -2r + -1r = -3r 4 + -3r = r + -1r Combine like terms: r + -1r = 0 4 + -3r = 0 Add '-4' to each side of the equation. 4 + -4 + -3r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3r = 0 + -4 -3r = 0 + -4 Combine like terms: 0 + -4 = -4 -3r = -4 Divide each side by '-3'. r = 1.333333333 Simplifying r = 1.333333333
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