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Simplifying 18z = 9(2z + 5) Reorder the terms: 18z = 9(5 + 2z) 18z = (5 * 9 + 2z * 9) 18z = (45 + 18z) Add '-18z' to each side of the equation. 18z + -18z = 45 + 18z + -18z Combine like terms: 18z + -18z = 0 0 = 45 + 18z + -18z Combine like terms: 18z + -18z = 0 0 = 45 + 0 0 = 45 Solving 0 = 45 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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