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Simplifying -7r + -14 = 7(-2r + 2) Reorder the terms: -14 + -7r = 7(-2r + 2) Reorder the terms: -14 + -7r = 7(2 + -2r) -14 + -7r = (2 * 7 + -2r * 7) -14 + -7r = (14 + -14r) Solving -14 + -7r = 14 + -14r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '14r' to each side of the equation. -14 + -7r + 14r = 14 + -14r + 14r Combine like terms: -7r + 14r = 7r -14 + 7r = 14 + -14r + 14r Combine like terms: -14r + 14r = 0 -14 + 7r = 14 + 0 -14 + 7r = 14 Add '14' to each side of the equation. -14 + 14 + 7r = 14 + 14 Combine like terms: -14 + 14 = 0 0 + 7r = 14 + 14 7r = 14 + 14 Combine like terms: 14 + 14 = 28 7r = 28 Divide each side by '7'. r = 4 Simplifying r = 4
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