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Simplifying r + 7 = 5r Reorder the terms: 7 + r = 5r Solving 7 + r = 5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5r' to each side of the equation. 7 + r + -5r = 5r + -5r Combine like terms: r + -5r = -4r 7 + -4r = 5r + -5r Combine like terms: 5r + -5r = 0 7 + -4r = 0 Add '-7' to each side of the equation. 7 + -7 + -4r = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4r = 0 + -7 -4r = 0 + -7 Combine like terms: 0 + -7 = -7 -4r = -7 Divide each side by '-4'. r = 1.75 Simplifying r = 1.75
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