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Simplifying 2(1 + 4y) + -9 = 8y (1 * 2 + 4y * 2) + -9 = 8y (2 + 8y) + -9 = 8y Reorder the terms: 2 + -9 + 8y = 8y Combine like terms: 2 + -9 = -7 -7 + 8y = 8y Add '-8y' to each side of the equation. -7 + 8y + -8y = 8y + -8y Combine like terms: 8y + -8y = 0 -7 + 0 = 8y + -8y -7 = 8y + -8y Combine like terms: 8y + -8y = 0 -7 = 0 Solving -7 = 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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