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Simplifying 3a2 + 7 = -20 Reorder the terms: 7 + 3a2 = -20 Solving 7 + 3a2 = -20 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3a2 = -20 + -7 Combine like terms: 7 + -7 = 0 0 + 3a2 = -20 + -7 3a2 = -20 + -7 Combine like terms: -20 + -7 = -27 3a2 = -27 Divide each side by '3'. a2 = -9 Simplifying a2 = -9 Reorder the terms: 9 + a2 = -9 + 9 Combine like terms: -9 + 9 = 0 9 + a2 = 0 The solution to this equation could not be determined.
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