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Simplifying -28 = 2a Solving -28 = 2a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2a' to each side of the equation. -28 + -2a = 2a + -2a Combine like terms: 2a + -2a = 0 -28 + -2a = 0 Add '28' to each side of the equation. -28 + 28 + -2a = 0 + 28 Combine like terms: -28 + 28 = 0 0 + -2a = 0 + 28 -2a = 0 + 28 Combine like terms: 0 + 28 = 28 -2a = 28 Divide each side by '-2'. a = -14 Simplifying a = -14
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