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Simplifying -1(1a + 3) = -1(1a + 1) + -2 Reorder the terms: -1(3 + 1a) = -1(1a + 1) + -2 (3 * -1 + 1a * -1) = -1(1a + 1) + -2 (-3 + -1a) = -1(1a + 1) + -2 Reorder the terms: -3 + -1a = -1(1 + 1a) + -2 -3 + -1a = (1 * -1 + 1a * -1) + -2 -3 + -1a = (-1 + -1a) + -2 Reorder the terms: -3 + -1a = -1 + -2 + -1a Combine like terms: -1 + -2 = -3 -3 + -1a = -3 + -1a Add '3' to each side of the equation. -3 + 3 + -1a = -3 + 3 + -1a Combine like terms: -3 + 3 = 0 0 + -1a = -3 + 3 + -1a -1a = -3 + 3 + -1a Combine like terms: -3 + 3 = 0 -1a = 0 + -1a -1a = -1a Add 'a' to each side of the equation. -1a + a = -1a + a Combine like terms: -1a + a = 0 0 = -1a + a Combine like terms: -1a + a = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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