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Simplifying y + -4 + -1(y + 12) = 13 Reorder the terms: y + -4 + -1(12 + y) = 13 y + -4 + (12 * -1 + y * -1) = 13 y + -4 + (-12 + -1y) = 13 Reorder the terms: -4 + -12 + y + -1y = 13 Combine like terms: -4 + -12 = -16 -16 + y + -1y = 13 Combine like terms: y + -1y = 0 -16 + 0 = 13 -16 = 13 Solving -16 = 13 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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