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Simplifying 4a(5a) + 9 = x Remove parenthesis around (5a) 4a * 5a + 9 = x Reorder the terms for easier multiplication: 4 * 5a * a + 9 = x Multiply 4 * 5 20a * a + 9 = x Multiply a * a 20a2 + 9 = x Reorder the terms: 9 + 20a2 = x Solving 9 + 20a2 = x Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 20a2 = -9 + x Combine like terms: 9 + -9 = 0 0 + 20a2 = -9 + x 20a2 = -9 + x Divide each side by '20'. a2 = -0.45 + 0.05x Simplifying a2 = -0.45 + 0.05x Reorder the terms: 0.45 + a2 + -0.05x = -0.45 + 0.05x + 0.45 + -0.05x Reorder the terms: 0.45 + a2 + -0.05x = -0.45 + 0.45 + 0.05x + -0.05x Combine like terms: -0.45 + 0.45 = 0.00 0.45 + a2 + -0.05x = 0.00 + 0.05x + -0.05x 0.45 + a2 + -0.05x = 0.05x + -0.05x Combine like terms: 0.05x + -0.05x = 0.00 0.45 + a2 + -0.05x = 0.00 The solution to this equation could not be determined.
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