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Simplifying a + 2b + -4c = 0 Solving a + 2b + -4c = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2b' to each side of the equation. a + 2b + -2b + -4c = 0 + -2b Combine like terms: 2b + -2b = 0 a + 0 + -4c = 0 + -2b a + -4c = 0 + -2b Remove the zero: a + -4c = -2b Add '4c' to each side of the equation. a + -4c + 4c = -2b + 4c Combine like terms: -4c + 4c = 0 a + 0 = -2b + 4c a = -2b + 4c Simplifying a = -2b + 4c
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