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