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Simplifying 7a + 5b + -4 = 0 Reorder the terms: -4 + 7a + 5b = 0 Solving -4 + 7a + 5b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 7a + 4 + 5b = 0 + 4 Reorder the terms: -4 + 4 + 7a + 5b = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 7a + 5b = 0 + 4 7a + 5b = 0 + 4 Combine like terms: 0 + 4 = 4 7a + 5b = 4 Add '-5b' to each side of the equation. 7a + 5b + -5b = 4 + -5b Combine like terms: 5b + -5b = 0 7a + 0 = 4 + -5b 7a = 4 + -5b Divide each side by '7'. a = 0.5714285714 + -0.7142857143b Simplifying a = 0.5714285714 + -0.7142857143b
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