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Simplifying 13a + 4b + 7a + -1b + -2a = 0 Reorder the terms: 13a + 7a + -2a + 4b + -1b = 0 Combine like terms: 13a + 7a = 20a 20a + -2a + 4b + -1b = 0 Combine like terms: 20a + -2a = 18a 18a + 4b + -1b = 0 Combine like terms: 4b + -1b = 3b 18a + 3b = 0 Solving 18a + 3b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-3b' to each side of the equation. 18a + 3b + -3b = 0 + -3b Combine like terms: 3b + -3b = 0 18a + 0 = 0 + -3b 18a = 0 + -3b Remove the zero: 18a = -3b Divide each side by '18'. a = -0.1666666667b Simplifying a = -0.1666666667b
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