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Simplifying 4 = 1r + -2 Reorder the terms: 4 = -2 + 1r Solving 4 = -2 + 1r 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 + -1r = -2 + 1r + -1r Combine like terms: 1r + -1r = 0 4 + -1r = -2 + 0 4 + -1r = -2 Add '-4' to each side of the equation. 4 + -4 + -1r = -2 + -4 Combine like terms: 4 + -4 = 0 0 + -1r = -2 + -4 -1r = -2 + -4 Combine like terms: -2 + -4 = -6 -1r = -6 Divide each side by '-1'. r = 6 Simplifying r = 6
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