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Simplifying -2.1 = 4.5 + 6r Solving -2.1 = 4.5 + 6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6r' to each side of the equation. -2.1 + -6r = 4.5 + 6r + -6r Combine like terms: 6r + -6r = 0 -2.1 + -6r = 4.5 + 0 -2.1 + -6r = 4.5 Add '2.1' to each side of the equation. -2.1 + 2.1 + -6r = 4.5 + 2.1 Combine like terms: -2.1 + 2.1 = 0.0 0.0 + -6r = 4.5 + 2.1 -6r = 4.5 + 2.1 Combine like terms: 4.5 + 2.1 = 6.6 -6r = 6.6 Divide each side by '-6'. r = -1.1 Simplifying r = -1.1
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