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Simplifying 0.1(0.5 + -1x) + 0.9(0.5 + x) = 0.5 (0.5 * 0.1 + -1x * 0.1) + 0.9(0.5 + x) = 0.5 (0.05 + -0.1x) + 0.9(0.5 + x) = 0.5 0.05 + -0.1x + (0.5 * 0.9 + x * 0.9) = 0.5 0.05 + -0.1x + (0.45 + 0.9x) = 0.5 Reorder the terms: 0.05 + 0.45 + -0.1x + 0.9x = 0.5 Combine like terms: 0.05 + 0.45 = 0.5 0.5 + -0.1x + 0.9x = 0.5 Combine like terms: -0.1x + 0.9x = 0.8x 0.5 + 0.8x = 0.5 Add '-0.5' to each side of the equation. 0.5 + -0.5 + 0.8x = 0.5 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + 0.8x = 0.5 + -0.5 0.8x = 0.5 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.8x = 0.0 Solving 0.8x = 0.0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '0.8'. x = 0 Simplifying x = 0
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