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Simplifying 20r + 7 = 15r + 22 Reorder the terms: 7 + 20r = 15r + 22 Reorder the terms: 7 + 20r = 22 + 15r Solving 7 + 20r = 22 + 15r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-15r' to each side of the equation. 7 + 20r + -15r = 22 + 15r + -15r Combine like terms: 20r + -15r = 5r 7 + 5r = 22 + 15r + -15r Combine like terms: 15r + -15r = 0 7 + 5r = 22 + 0 7 + 5r = 22 Add '-7' to each side of the equation. 7 + -7 + 5r = 22 + -7 Combine like terms: 7 + -7 = 0 0 + 5r = 22 + -7 5r = 22 + -7 Combine like terms: 22 + -7 = 15 5r = 15 Divide each side by '5'. r = 3 Simplifying r = 3
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