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Simplifying 12r + -8 + 5(3r) = 49 Remove parenthesis around (3r) 12r + -8 + 5 * 3r = 49 Multiply 5 * 3 12r + -8 + 15r = 49 Reorder the terms: -8 + 12r + 15r = 49 Combine like terms: 12r + 15r = 27r -8 + 27r = 49 Solving -8 + 27r = 49 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 27r = 49 + 8 Combine like terms: -8 + 8 = 0 0 + 27r = 49 + 8 27r = 49 + 8 Combine like terms: 49 + 8 = 57 27r = 57 Divide each side by '27'. r = 2.111111111 Simplifying r = 2.111111111
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