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Simplifying 7ab + 8a + -9b = 31 Reorder the terms: 8a + 7ab + -9b = 31 Solving 8a + 7ab + -9b = 31 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '9b' to each side of the equation. 8a + 7ab + -9b + 9b = 31 + 9b Combine like terms: -9b + 9b = 0 8a + 7ab + 0 = 31 + 9b 8a + 7ab = 31 + 9b Reorder the terms: -31 + 8a + 7ab + -9b = 31 + 9b + -31 + -9b Reorder the terms: -31 + 8a + 7ab + -9b = 31 + -31 + 9b + -9b Combine like terms: 31 + -31 = 0 -31 + 8a + 7ab + -9b = 0 + 9b + -9b -31 + 8a + 7ab + -9b = 9b + -9b Combine like terms: 9b + -9b = 0 -31 + 8a + 7ab + -9b = 0 The solution to this equation could not be determined.
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