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Simplifying -1[a + -1(a + -5)] + -3 = -5 + -1(-9 + -5) Reorder the terms: -1[a + -1(-5 + a)] + -3 = -5 + -1(-9 + -5) -1[a + (-5 * -1 + a * -1)] + -3 = -5 + -1(-9 + -5) -1[a + (5 + -1a)] + -3 = -5 + -1(-9 + -5) Reorder the terms: -1[5 + a + -1a] + -3 = -5 + -1(-9 + -5) Combine like terms: a + -1a = 0 -1[5 + 0] + -3 = -5 + -1(-9 + -5) -1[5] + -3 = -5 + -1(-9 + -5) Multiply -1 * 5 -5 + -3 = -5 + -1(-9 + -5) Combine like terms: -5 + -3 = -8 -8 = -5 + -1(-9 + -5) Combine like terms: -9 + -5 = -14 -8 = -5 + -1(-14) Multiply -1 * -14 -8 = -5 + 14 Combine like terms: -5 + 14 = 9 -8 = 9 Solving -8 = 9 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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