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Simplifying (-7x + 4) + (-7x2 + 7x + -9) = 0 Reorder the terms: (4 + -7x) + (-7x2 + 7x + -9) = 0 Remove parenthesis around (4 + -7x) 4 + -7x + (-7x2 + 7x + -9) = 0 Reorder the terms: 4 + -7x + (-9 + 7x + -7x2) = 0 Remove parenthesis around (-9 + 7x + -7x2) 4 + -7x + -9 + 7x + -7x2 = 0 Reorder the terms: 4 + -9 + -7x + 7x + -7x2 = 0 Combine like terms: 4 + -9 = -5 -5 + -7x + 7x + -7x2 = 0 Combine like terms: -7x + 7x = 0 -5 + 0 + -7x2 = 0 -5 + -7x2 = 0 Solving -5 + -7x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -7x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -7x2 = 0 + 5 -7x2 = 0 + 5 Combine like terms: 0 + 5 = 5 -7x2 = 5 Divide each side by '-7'. x2 = -0.7142857143 Simplifying x2 = -0.7142857143 Reorder the terms: 0.7142857143 + x2 = -0.7142857143 + 0.7142857143 Combine like terms: -0.7142857143 + 0.7142857143 = 0.0000000000 0.7142857143 + x2 = 0.0000000000 The solution to this equation could not be determined.
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