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Simplifying 4(a + 2) + 5 = 23 Reorder the terms: 4(2 + a) + 5 = 23 (2 * 4 + a * 4) + 5 = 23 (8 + 4a) + 5 = 23 Reorder the terms: 8 + 5 + 4a = 23 Combine like terms: 8 + 5 = 13 13 + 4a = 23 Solving 13 + 4a = 23 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + 4a = 23 + -13 Combine like terms: 13 + -13 = 0 0 + 4a = 23 + -13 4a = 23 + -13 Combine like terms: 23 + -13 = 10 4a = 10 Divide each side by '4'. a = 2.5 Simplifying a = 2.5
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