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Simplifying a + 0.81 = -6.30 Reorder the terms: 0.81 + a = -6.30 Solving 0.81 + a = -6.30 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.81' to each side of the equation. 0.81 + -0.81 + a = -6.30 + -0.81 Combine like terms: 0.81 + -0.81 = 0.00 0.00 + a = -6.30 + -0.81 a = -6.30 + -0.81 Combine like terms: -6.30 + -0.81 = -7.11 a = -7.11 Simplifying a = -7.11
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