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Simplifying 3r + -7 * -19 = -18 Multiply -7 * -19 3r + 133 = -18 Reorder the terms: 133 + 3r = -18 Solving 133 + 3r = -18 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-133' to each side of the equation. 133 + -133 + 3r = -18 + -133 Combine like terms: 133 + -133 = 0 0 + 3r = -18 + -133 3r = -18 + -133 Combine like terms: -18 + -133 = -151 3r = -151 Divide each side by '3'. r = -50.33333333 Simplifying r = -50.33333333
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