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Simplifying 8a + 4b + 7 = 3 Reorder the terms: 7 + 8a + 4b = 3 Solving 7 + 8a + 4b = 3 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 + 8a + -7 + 4b = 3 + -7 Reorder the terms: 7 + -7 + 8a + 4b = 3 + -7 Combine like terms: 7 + -7 = 0 0 + 8a + 4b = 3 + -7 8a + 4b = 3 + -7 Combine like terms: 3 + -7 = -4 8a + 4b = -4 Add '-4b' to each side of the equation. 8a + 4b + -4b = -4 + -4b Combine like terms: 4b + -4b = 0 8a + 0 = -4 + -4b 8a = -4 + -4b Divide each side by '8'. a = -0.5 + -0.5b Simplifying a = -0.5 + -0.5b
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