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Simplifying (8b4 + -1b3) + -1(b4 + 4b3 + -4) = 7 Reorder the terms: (-1b3 + 8b4) + -1(b4 + 4b3 + -4) = 7 Remove parenthesis around (-1b3 + 8b4) -1b3 + 8b4 + -1(b4 + 4b3 + -4) = 7 Reorder the terms: -1b3 + 8b4 + -1(-4 + 4b3 + b4) = 7 -1b3 + 8b4 + (-4 * -1 + 4b3 * -1 + b4 * -1) = 7 -1b3 + 8b4 + (4 + -4b3 + -1b4) = 7 Reorder the terms: 4 + -1b3 + -4b3 + 8b4 + -1b4 = 7 Combine like terms: -1b3 + -4b3 = -5b3 4 + -5b3 + 8b4 + -1b4 = 7 Combine like terms: 8b4 + -1b4 = 7b4 4 + -5b3 + 7b4 = 7 Solving 4 + -5b3 + 7b4 = 7 Solving for variable 'b'. Reorder the terms: 4 + -7 + -5b3 + 7b4 = 7 + -7 Combine like terms: 4 + -7 = -3 -3 + -5b3 + 7b4 = 7 + -7 Combine like terms: 7 + -7 = 0 -3 + -5b3 + 7b4 = 0 The solution to this equation could not be determined.
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