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Simplifying -77.4 = 9a Solving -77.4 = 9a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9a' to each side of the equation. -77.4 + -9a = 9a + -9a Combine like terms: 9a + -9a = 0 -77.4 + -9a = 0 Add '77.4' to each side of the equation. -77.4 + 77.4 + -9a = 0 + 77.4 Combine like terms: -77.4 + 77.4 = 0.0 0.0 + -9a = 0 + 77.4 -9a = 0 + 77.4 Combine like terms: 0 + 77.4 = 77.4 -9a = 77.4 Divide each side by '-9'. a = -8.6 Simplifying a = -8.6
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