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Simplifying 0 = 7a + 2b + 5 + -5a + 9b + -1 Reorder the terms: 0 = 5 + -1 + 7a + -5a + 2b + 9b Combine like terms: 5 + -1 = 4 0 = 4 + 7a + -5a + 2b + 9b Combine like terms: 7a + -5a = 2a 0 = 4 + 2a + 2b + 9b Combine like terms: 2b + 9b = 11b 0 = 4 + 2a + 11b Solving 0 = 4 + 2a + 11b Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2a' to each side of the equation. 0 + -2a = 4 + 2a + -2a + 11b Remove the zero: -2a = 4 + 2a + -2a + 11b Combine like terms: 2a + -2a = 0 -2a = 4 + 0 + 11b -2a = 4 + 11b Divide each side by '-2'. a = -2 + -5.5b Simplifying a = -2 + -5.5b
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