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Simplifying 3r + 4 = 18r + 7 Reorder the terms: 4 + 3r = 18r + 7 Reorder the terms: 4 + 3r = 7 + 18r Solving 4 + 3r = 7 + 18r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-18r' to each side of the equation. 4 + 3r + -18r = 7 + 18r + -18r Combine like terms: 3r + -18r = -15r 4 + -15r = 7 + 18r + -18r Combine like terms: 18r + -18r = 0 4 + -15r = 7 + 0 4 + -15r = 7 Add '-4' to each side of the equation. 4 + -4 + -15r = 7 + -4 Combine like terms: 4 + -4 = 0 0 + -15r = 7 + -4 -15r = 7 + -4 Combine like terms: 7 + -4 = 3 -15r = 3 Divide each side by '-15'. r = -0.2 Simplifying r = -0.2
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