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Simplifying 2a + -7 = 7 Reorder the terms: -7 + 2a = 7 Solving -7 + 2a = 7 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 + 7 + 2a = 7 + 7 Combine like terms: -7 + 7 = 0 0 + 2a = 7 + 7 2a = 7 + 7 Combine like terms: 7 + 7 = 14 2a = 14 Divide each side by '2'. a = 7 Simplifying a = 7
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