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Simplifying -2 + a + -8a = -8a + 4 Combine like terms: a + -8a = -7a -2 + -7a = -8a + 4 Reorder the terms: -2 + -7a = 4 + -8a Solving -2 + -7a = 4 + -8a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '8a' to each side of the equation. -2 + -7a + 8a = 4 + -8a + 8a Combine like terms: -7a + 8a = 1a -2 + 1a = 4 + -8a + 8a Combine like terms: -8a + 8a = 0 -2 + 1a = 4 + 0 -2 + 1a = 4 Add '2' to each side of the equation. -2 + 2 + 1a = 4 + 2 Combine like terms: -2 + 2 = 0 0 + 1a = 4 + 2 1a = 4 + 2 Combine like terms: 4 + 2 = 6 1a = 6 Divide each side by '1'. a = 6 Simplifying a = 6
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