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Simplifying (x + -1(0.21x)) * 0.25 = 500 Remove parenthesis around (0.21x) (x + -1 * 0.21x) * 0.25 = 500 Multiply -1 * 0.21 (x + -0.21x) * 0.25 = 500 Combine like terms: x + -0.21x = 0.79x (0.79x) * 0.25 = 500 Remove parenthesis around (0.79x) 0.79x * 0.25 = 500 Reorder the terms for easier multiplication: 0.79 * 0.25x = 500 Multiply 0.79 * 0.25 0.1975x = 500 Solving 0.1975x = 500 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '0.1975'. x = 2531.64557 Simplifying x = 2531.64557
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