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Simplifying x * 4 + 9 = a Reorder the terms for easier multiplication: 4x + 9 = a Reorder the terms: 9 + 4x = a Solving 9 + 4x = a Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 4x = -9 + a Combine like terms: 9 + -9 = 0 0 + 4x = -9 + a 4x = -9 + a Divide each side by '4'. x = -2.25 + 0.25a Simplifying x = -2.25 + 0.25a
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