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Simplifying 6a + 15b = 139 Solving 6a + 15b = 139 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-15b' to each side of the equation. 6a + 15b + -15b = 139 + -15b Combine like terms: 15b + -15b = 0 6a + 0 = 139 + -15b 6a = 139 + -15b Divide each side by '6'. a = 23.16666667 + -2.5b Simplifying a = 23.16666667 + -2.5b
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