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Simplifying 8a2 + -4d = 60 Solving 8a2 + -4d = 60 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4d' to each side of the equation. 8a2 + -4d + 4d = 60 + 4d Combine like terms: -4d + 4d = 0 8a2 + 0 = 60 + 4d 8a2 = 60 + 4d Divide each side by '8'. a2 = 7.5 + 0.5d Simplifying a2 = 7.5 + 0.5d Reorder the terms: -7.5 + a2 + -0.5d = 7.5 + 0.5d + -7.5 + -0.5d Reorder the terms: -7.5 + a2 + -0.5d = 7.5 + -7.5 + 0.5d + -0.5d Combine like terms: 7.5 + -7.5 = 0.0 -7.5 + a2 + -0.5d = 0.0 + 0.5d + -0.5d -7.5 + a2 + -0.5d = 0.5d + -0.5d Combine like terms: 0.5d + -0.5d = 0.0 -7.5 + a2 + -0.5d = 0.0 The solution to this equation could not be determined.
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