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Simplifying a + 2b + 2a + -8 + 9b = n Reorder the terms: -8 + a + 2a + 2b + 9b = n Combine like terms: a + 2a = 3a -8 + 3a + 2b + 9b = n Combine like terms: 2b + 9b = 11b -8 + 3a + 11b = n Solving -8 + 3a + 11b = n Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 3a + 8 + 11b = 8 + n Reorder the terms: -8 + 8 + 3a + 11b = 8 + n Combine like terms: -8 + 8 = 0 0 + 3a + 11b = 8 + n 3a + 11b = 8 + n Add '-11b' to each side of the equation. 3a + 11b + -11b = 8 + -11b + n Combine like terms: 11b + -11b = 0 3a + 0 = 8 + -11b + n 3a = 8 + -11b + n Divide each side by '3'. a = 2.666666667 + -3.666666667b + 0.3333333333n Simplifying a = 2.666666667 + -3.666666667b + 0.3333333333n
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