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Simplifying 4a + -1(3a + -2) + (a + 4) + -2a = 0 Reorder the terms: 4a + -1(-2 + 3a) + (a + 4) + -2a = 0 4a + (-2 * -1 + 3a * -1) + (a + 4) + -2a = 0 4a + (2 + -3a) + (a + 4) + -2a = 0 Reorder the terms: 4a + 2 + -3a + (4 + a) + -2a = 0 Remove parenthesis around (4 + a) 4a + 2 + -3a + 4 + a + -2a = 0 Reorder the terms: 2 + 4 + 4a + -3a + a + -2a = 0 Combine like terms: 2 + 4 = 6 6 + 4a + -3a + a + -2a = 0 Combine like terms: 4a + -3a = 1a 6 + 1a + a + -2a = 0 Combine like terms: 1a + a = 2a 6 + 2a + -2a = 0 Combine like terms: 2a + -2a = 0 6 + 0 = 0 6 = 0 Solving 6 = 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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