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Simplifying 10a + 30b = 200 Solving 10a + 30b = 200 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-30b' to each side of the equation. 10a + 30b + -30b = 200 + -30b Combine like terms: 30b + -30b = 0 10a + 0 = 200 + -30b 10a = 200 + -30b Divide each side by '10'. a = 20 + -3b Simplifying a = 20 + -3b
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