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Simplifying 2a + 4b + -7 = 0 Reorder the terms: -7 + 2a + 4b = 0 Solving -7 + 2a + 4b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 2a + 7 + 4b = 0 + 7 Reorder the terms: -7 + 7 + 2a + 4b = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 2a + 4b = 0 + 7 2a + 4b = 0 + 7 Combine like terms: 0 + 7 = 7 2a + 4b = 7 Add '-4b' to each side of the equation. 2a + 4b + -4b = 7 + -4b Combine like terms: 4b + -4b = 0 2a + 0 = 7 + -4b 2a = 7 + -4b Divide each side by '2'. a = 3.5 + -2b Simplifying a = 3.5 + -2b
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