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Simplifying 2b + -4a + 9 = 0 Reorder the terms: 9 + -4a + 2b = 0 Solving 9 + -4a + 2b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -4a + -9 + 2b = 0 + -9 Reorder the terms: 9 + -9 + -4a + 2b = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4a + 2b = 0 + -9 -4a + 2b = 0 + -9 Combine like terms: 0 + -9 = -9 -4a + 2b = -9 Add '-2b' to each side of the equation. -4a + 2b + -2b = -9 + -2b Combine like terms: 2b + -2b = 0 -4a + 0 = -9 + -2b -4a = -9 + -2b Divide each side by '-4'. a = 2.25 + 0.5b Simplifying a = 2.25 + 0.5b
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