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Simplifying 0.8(x) * 0.05 + 0.2(x) * 0.07 = 54 Reorder the terms for easier multiplication: 0.8 * 0.05x + 0.2(x) * 0.07 = 54 Multiply 0.8 * 0.05 0.04x + 0.2(x) * 0.07 = 54 Reorder the terms for easier multiplication: 0.04x + 0.2 * 0.07x = 54 Multiply 0.2 * 0.07 0.04x + 0.014x = 54 Combine like terms: 0.04x + 0.014x = 0.054x 0.054x = 54 Solving 0.054x = 54 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '0.054'. x = 1000 Simplifying x = 1000
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