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Simplifying 2r + -16 = -12 + r Reorder the terms: -16 + 2r = -12 + r Solving -16 + 2r = -12 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. -16 + 2r + -1r = -12 + r + -1r Combine like terms: 2r + -1r = 1r -16 + 1r = -12 + r + -1r Combine like terms: r + -1r = 0 -16 + 1r = -12 + 0 -16 + 1r = -12 Add '16' to each side of the equation. -16 + 16 + 1r = -12 + 16 Combine like terms: -16 + 16 = 0 0 + 1r = -12 + 16 1r = -12 + 16 Combine like terms: -12 + 16 = 4 1r = 4 Divide each side by '1'. r = 4 Simplifying r = 4
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