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Simplifying 2r + -7 = -4 + 5r Reorder the terms: -7 + 2r = -4 + 5r Solving -7 + 2r = -4 + 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 + 2r + -5r = -4 + 5r + -5r Combine like terms: 2r + -5r = -3r -7 + -3r = -4 + 5r + -5r Combine like terms: 5r + -5r = 0 -7 + -3r = -4 + 0 -7 + -3r = -4 Add '7' to each side of the equation. -7 + 7 + -3r = -4 + 7 Combine like terms: -7 + 7 = 0 0 + -3r = -4 + 7 -3r = -4 + 7 Combine like terms: -4 + 7 = 3 -3r = 3 Divide each side by '-3'. r = -1 Simplifying r = -1
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