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Simplifying 2 + 2r = -2(7r + -1) Reorder the terms: 2 + 2r = -2(-1 + 7r) 2 + 2r = (-1 * -2 + 7r * -2) 2 + 2r = (2 + -14r) Add '-2' to each side of the equation. 2 + -2 + 2r = 2 + -2 + -14r Combine like terms: 2 + -2 = 0 0 + 2r = 2 + -2 + -14r 2r = 2 + -2 + -14r Combine like terms: 2 + -2 = 0 2r = 0 + -14r 2r = -14r Solving 2r = -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. 2r + 14r = -14r + 14r Combine like terms: 2r + 14r = 16r 16r = -14r + 14r Combine like terms: -14r + 14r = 0 16r = 0 Divide each side by '16'. r = 0 Simplifying r = 0
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