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Simplifying (3 + 2x + 7x2 + 2x3) + (4 + -2x + 7x2 + -2x3) = 0 Remove parenthesis around (3 + 2x + 7x2 + 2x3) 3 + 2x + 7x2 + 2x3 + (4 + -2x + 7x2 + -2x3) = 0 Remove parenthesis around (4 + -2x + 7x2 + -2x3) 3 + 2x + 7x2 + 2x3 + 4 + -2x + 7x2 + -2x3 = 0 Reorder the terms: 3 + 4 + 2x + -2x + 7x2 + 7x2 + 2x3 + -2x3 = 0 Combine like terms: 3 + 4 = 7 7 + 2x + -2x + 7x2 + 7x2 + 2x3 + -2x3 = 0 Combine like terms: 2x + -2x = 0 7 + 0 + 7x2 + 7x2 + 2x3 + -2x3 = 0 7 + 7x2 + 7x2 + 2x3 + -2x3 = 0 Combine like terms: 7x2 + 7x2 = 14x2 7 + 14x2 + 2x3 + -2x3 = 0 Combine like terms: 2x3 + -2x3 = 0 7 + 14x2 + 0 = 0 7 + 14x2 = 0 Solving 7 + 14x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 14x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 14x2 = 0 + -7 14x2 = 0 + -7 Combine like terms: 0 + -7 = -7 14x2 = -7 Divide each side by '14'. x2 = -0.5 Simplifying x2 = -0.5 Reorder the terms: 0.5 + x2 = -0.5 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.5 + x2 = 0.0 The solution to this equation could not be determined.
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