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Simplifying 3z(5z + 6) = 15z2 + 18z + -1 Reorder the terms: 3z(6 + 5z) = 15z2 + 18z + -1 (6 * 3z + 5z * 3z) = 15z2 + 18z + -1 (18z + 15z2) = 15z2 + 18z + -1 Reorder the terms: 18z + 15z2 = -1 + 18z + 15z2 Add '-18z' to each side of the equation. 18z + -18z + 15z2 = -1 + 18z + -18z + 15z2 Combine like terms: 18z + -18z = 0 0 + 15z2 = -1 + 18z + -18z + 15z2 15z2 = -1 + 18z + -18z + 15z2 Combine like terms: 18z + -18z = 0 15z2 = -1 + 0 + 15z2 15z2 = -1 + 15z2 Add '-15z2' to each side of the equation. 15z2 + -15z2 = -1 + 15z2 + -15z2 Combine like terms: 15z2 + -15z2 = 0 0 = -1 + 15z2 + -15z2 Combine like terms: 15z2 + -15z2 = 0 0 = -1 + 0 0 = -1 Solving 0 = -1 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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