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Simplifying 4.2 = 0.14r Solving 4.2 = 0.14r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.14r' to each side of the equation. 4.2 + -0.14r = 0.14r + -0.14r Combine like terms: 0.14r + -0.14r = 0.00 4.2 + -0.14r = 0.00 Add '-4.2' to each side of the equation. 4.2 + -4.2 + -0.14r = 0.00 + -4.2 Combine like terms: 4.2 + -4.2 = 0.0 0.0 + -0.14r = 0.00 + -4.2 -0.14r = 0.00 + -4.2 Combine like terms: 0.00 + -4.2 = -4.2 -0.14r = -4.2 Divide each side by '-0.14'. r = 30 Simplifying r = 30
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