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Simplifying (0.21a + 0.10b) = 557.65 Remove parenthesis around (0.21a + 0.10b) 0.21a + 0.10b = 557.65 Solving 0.21a + 0.10b = 557.65 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.10b' to each side of the equation. 0.21a + 0.10b + -0.10b = 557.65 + -0.10b Combine like terms: 0.10b + -0.10b = 0.00 0.21a + 0.00 = 557.65 + -0.10b 0.21a = 557.65 + -0.10b Divide each side by '0.21'. a = 2655.47619 + -0.4761904762b Simplifying a = 2655.47619 + -0.4761904762b
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