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Simplifying 20 + 4b + -5a + -1ab = 0 Reorder the terms: 20 + -5a + -1ab + 4b = 0 Solving 20 + -5a + -1ab + 4b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -5a + -1ab + -20 + 4b = 0 + -20 Reorder the terms: 20 + -20 + -5a + -1ab + 4b = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -5a + -1ab + 4b = 0 + -20 -5a + -1ab + 4b = 0 + -20 Combine like terms: 0 + -20 = -20 -5a + -1ab + 4b = -20 Add '-4b' to each side of the equation. -5a + -1ab + 4b + -4b = -20 + -4b Combine like terms: 4b + -4b = 0 -5a + -1ab + 0 = -20 + -4b -5a + -1ab = -20 + -4b Reorder the terms: 20 + -5a + -1ab + 4b = -20 + -4b + 20 + 4b Reorder the terms: 20 + -5a + -1ab + 4b = -20 + 20 + -4b + 4b Combine like terms: -20 + 20 = 0 20 + -5a + -1ab + 4b = 0 + -4b + 4b 20 + -5a + -1ab + 4b = -4b + 4b Combine like terms: -4b + 4b = 0 20 + -5a + -1ab + 4b = 0 The solution to this equation could not be determined.
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