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Simplifying 2a + 1 = 3a + -15 + -1(1 + a) Reorder the terms: 1 + 2a = 3a + -15 + -1(1 + a) 1 + 2a = 3a + -15 + (1 * -1 + a * -1) 1 + 2a = 3a + -15 + (-1 + -1a) Reorder the terms: 1 + 2a = -15 + -1 + 3a + -1a Combine like terms: -15 + -1 = -16 1 + 2a = -16 + 3a + -1a Combine like terms: 3a + -1a = 2a 1 + 2a = -16 + 2a Add '-2a' to each side of the equation. 1 + 2a + -2a = -16 + 2a + -2a Combine like terms: 2a + -2a = 0 1 + 0 = -16 + 2a + -2a 1 = -16 + 2a + -2a Combine like terms: 2a + -2a = 0 1 = -16 + 0 1 = -16 Solving 1 = -16 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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