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Simplifying 7a + -9 = 0 Reorder the terms: -9 + 7a = 0 Solving -9 + 7a = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 7a = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 7a = 0 + 9 7a = 0 + 9 Combine like terms: 0 + 9 = 9 7a = 9 Divide each side by '7'. a = 1.285714286 Simplifying a = 1.285714286
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