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Simplifying (z + 13) = (z + 8) Reorder the terms: (13 + z) = (z + 8) Remove parenthesis around (13 + z) 13 + z = (z + 8) Reorder the terms: 13 + z = (8 + z) Remove parenthesis around (8 + z) 13 + z = 8 + z Add '-1z' to each side of the equation. 13 + z + -1z = 8 + z + -1z Combine like terms: z + -1z = 0 13 + 0 = 8 + z + -1z 13 = 8 + z + -1z Combine like terms: z + -1z = 0 13 = 8 + 0 13 = 8 Solving 13 = 8 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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