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Simplifying 2.2a + 7.88 = -13.02 Reorder the terms: 7.88 + 2.2a = -13.02 Solving 7.88 + 2.2a = -13.02 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7.88' to each side of the equation. 7.88 + -7.88 + 2.2a = -13.02 + -7.88 Combine like terms: 7.88 + -7.88 = 0.00 0.00 + 2.2a = -13.02 + -7.88 2.2a = -13.02 + -7.88 Combine like terms: -13.02 + -7.88 = -20.9 2.2a = -20.9 Divide each side by '2.2'. a = -9.5 Simplifying a = -9.5
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