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Simplifying a2 = (2 + -1a3) + -1a(2a + -1a4) Remove parenthesis around (2 + -1a3) a2 = 2 + -1a3 + -1a(2a + -1a4) a2 = 2 + -1a3 + (2a * -1a + -1a4 * -1a) a2 = 2 + -1a3 + (-2a2 + 1a5) Reorder the terms: a2 = 2 + -2a2 + -1a3 + 1a5 Solving a2 = 2 + -2a2 + -1a3 + 1a5 Solving for variable 'a'. Reorder the terms: -2 + a2 + 2a2 + a3 + -1a5 = 2 + -2a2 + -1a3 + 1a5 + -2 + 2a2 + a3 + -1a5 Combine like terms: a2 + 2a2 = 3a2 -2 + 3a2 + a3 + -1a5 = 2 + -2a2 + -1a3 + 1a5 + -2 + 2a2 + a3 + -1a5 Reorder the terms: -2 + 3a2 + a3 + -1a5 = 2 + -2 + -2a2 + 2a2 + -1a3 + a3 + 1a5 + -1a5 Combine like terms: 2 + -2 = 0 -2 + 3a2 + a3 + -1a5 = 0 + -2a2 + 2a2 + -1a3 + a3 + 1a5 + -1a5 -2 + 3a2 + a3 + -1a5 = -2a2 + 2a2 + -1a3 + a3 + 1a5 + -1a5 Combine like terms: -2a2 + 2a2 = 0 -2 + 3a2 + a3 + -1a5 = 0 + -1a3 + a3 + 1a5 + -1a5 -2 + 3a2 + a3 + -1a5 = -1a3 + a3 + 1a5 + -1a5 Combine like terms: -1a3 + a3 = 0 -2 + 3a2 + a3 + -1a5 = 0 + 1a5 + -1a5 -2 + 3a2 + a3 + -1a5 = 1a5 + -1a5 Combine like terms: 1a5 + -1a5 = 0 -2 + 3a2 + a3 + -1a5 = 0 The solution to this equation could not be determined.
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