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