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Simplifying 12 + -1.2r = 2r + 1 Reorder the terms: 12 + -1.2r = 1 + 2r Solving 12 + -1.2r = 1 + 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. 12 + -1.2r + -2r = 1 + 2r + -2r Combine like terms: -1.2r + -2r = -3.2r 12 + -3.2r = 1 + 2r + -2r Combine like terms: 2r + -2r = 0 12 + -3.2r = 1 + 0 12 + -3.2r = 1 Add '-12' to each side of the equation. 12 + -12 + -3.2r = 1 + -12 Combine like terms: 12 + -12 = 0 0 + -3.2r = 1 + -12 -3.2r = 1 + -12 Combine like terms: 1 + -12 = -11 -3.2r = -11 Divide each side by '-3.2'. r = 3.4375 Simplifying r = 3.4375
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