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Simplifying 30a + 42 = 0 Reorder the terms: 42 + 30a = 0 Solving 42 + 30a = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-42' to each side of the equation. 42 + -42 + 30a = 0 + -42 Combine like terms: 42 + -42 = 0 0 + 30a = 0 + -42 30a = 0 + -42 Combine like terms: 0 + -42 = -42 30a = -42 Divide each side by '30'. a = -1.4 Simplifying a = -1.4
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