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Simplifying 7a + -14 = 42 Reorder the terms: -14 + 7a = 42 Solving -14 + 7a = 42 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + 7a = 42 + 14 Combine like terms: -14 + 14 = 0 0 + 7a = 42 + 14 7a = 42 + 14 Combine like terms: 42 + 14 = 56 7a = 56 Divide each side by '7'. a = 8 Simplifying a = 8
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