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Simplifying 12r + -8 + -12(r + 2) = 0 Reorder the terms: 12r + -8 + -12(2 + r) = 0 12r + -8 + (2 * -12 + r * -12) = 0 12r + -8 + (-24 + -12r) = 0 Reorder the terms: -8 + -24 + 12r + -12r = 0 Combine like terms: -8 + -24 = -32 -32 + 12r + -12r = 0 Combine like terms: 12r + -12r = 0 -32 + 0 = 0 -32 = 0 Solving -32 = 0 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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