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Simplifying 20a + 14 + 1a = -47 Reorder the terms: 14 + 20a + 1a = -47 Combine like terms: 20a + 1a = 21a 14 + 21a = -47 Solving 14 + 21a = -47 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 + 21a = -47 + -14 Combine like terms: 14 + -14 = 0 0 + 21a = -47 + -14 21a = -47 + -14 Combine like terms: -47 + -14 = -61 21a = -61 Divide each side by '21'. a = -2.904761905 Simplifying a = -2.904761905
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