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Simplifying 7a + 3 + -8a = 4 Reorder the terms: 3 + 7a + -8a = 4 Combine like terms: 7a + -8a = -1a 3 + -1a = 4 Solving 3 + -1a = 4 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1a = 4 + -3 Combine like terms: 3 + -3 = 0 0 + -1a = 4 + -3 -1a = 4 + -3 Combine like terms: 4 + -3 = 1 -1a = 1 Divide each side by '-1'. a = -1 Simplifying a = -1
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