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Simplifying 7 = 4r + 4 + -3 Reorder the terms: 7 = 4 + -3 + 4r Combine like terms: 4 + -3 = 1 7 = 1 + 4r Solving 7 = 1 + 4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4r' to each side of the equation. 7 + -4r = 1 + 4r + -4r Combine like terms: 4r + -4r = 0 7 + -4r = 1 + 0 7 + -4r = 1 Add '-7' to each side of the equation. 7 + -7 + -4r = 1 + -7 Combine like terms: 7 + -7 = 0 0 + -4r = 1 + -7 -4r = 1 + -7 Combine like terms: 1 + -7 = -6 -4r = -6 Divide each side by '-4'. r = 1.5 Simplifying r = 1.5
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