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Simplifying a + 2b = 13 Solving a + 2b = 13 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 = 13 + -2b Combine like terms: 2b + -2b = 0 a + 0 = 13 + -2b a = 13 + -2b Simplifying a = 13 + -2b
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