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Simplifying a * 4 + 2 = 13 Reorder the terms for easier multiplication: 4a + 2 = 13 Reorder the terms: 2 + 4a = 13 Solving 2 + 4a = 13 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 4a = 13 + -2 Combine like terms: 2 + -2 = 0 0 + 4a = 13 + -2 4a = 13 + -2 Combine like terms: 13 + -2 = 11 4a = 11 Divide each side by '4'. a = 2.75 Simplifying a = 2.75
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