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Simplifying (x3 + 3x2 + 7) + (3x3 + -4x2 + -5x + 1) = 0 Reorder the terms: (7 + 3x2 + x3) + (3x3 + -4x2 + -5x + 1) = 0 Remove parenthesis around (7 + 3x2 + x3) 7 + 3x2 + x3 + (3x3 + -4x2 + -5x + 1) = 0 Reorder the terms: 7 + 3x2 + x3 + (1 + -5x + -4x2 + 3x3) = 0 Remove parenthesis around (1 + -5x + -4x2 + 3x3) 7 + 3x2 + x3 + 1 + -5x + -4x2 + 3x3 = 0 Reorder the terms: 7 + 1 + -5x + 3x2 + -4x2 + x3 + 3x3 = 0 Combine like terms: 7 + 1 = 8 8 + -5x + 3x2 + -4x2 + x3 + 3x3 = 0 Combine like terms: 3x2 + -4x2 = -1x2 8 + -5x + -1x2 + x3 + 3x3 = 0 Combine like terms: x3 + 3x3 = 4x3 8 + -5x + -1x2 + 4x3 = 0 Solving 8 + -5x + -1x2 + 4x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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