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Simplifying r + -7 = 6r Reorder the terms: -7 + r = 6r Solving -7 + r = 6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6r' to each side of the equation. -7 + r + -6r = 6r + -6r Combine like terms: r + -6r = -5r -7 + -5r = 6r + -6r Combine like terms: 6r + -6r = 0 -7 + -5r = 0 Add '7' to each side of the equation. -7 + 7 + -5r = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -5r = 0 + 7 -5r = 0 + 7 Combine like terms: 0 + 7 = 7 -5r = 7 Divide each side by '-5'. r = -1.4 Simplifying r = -1.4
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