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Simplifying 5 + -7(a2) + 3a2 + -7 = 0 Reorder the terms: 5 + -7 + -7a2 + 3a2 = 0 Combine like terms: 5 + -7 = -2 -2 + -7a2 + 3a2 = 0 Combine like terms: -7a2 + 3a2 = -4a2 -2 + -4a2 = 0 Solving -2 + -4a2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -4a2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -4a2 = 0 + 2 -4a2 = 0 + 2 Combine like terms: 0 + 2 = 2 -4a2 = 2 Divide each side by '-4'. a2 = -0.5 Simplifying a2 = -0.5 Reorder the terms: 0.5 + a2 = -0.5 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.5 + a2 = 0.0 The solution to this equation could not be determined.
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