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Simplifying 0.4D + 0.2E = 0.5D + 0.14E Solving 0.4D + 0.2E = 0.5D + 0.14E Solving for variable 'D'. Move all terms containing D to the left, all other terms to the right. Add '-0.5D' to each side of the equation. 0.4D + -0.5D + 0.2E = 0.5D + -0.5D + 0.14E Combine like terms: 0.4D + -0.5D = -0.1D -0.1D + 0.2E = 0.5D + -0.5D + 0.14E Combine like terms: 0.5D + -0.5D = 0.0 -0.1D + 0.2E = 0.0 + 0.14E -0.1D + 0.2E = 0.14E Add '-0.2E' to each side of the equation. -0.1D + 0.2E + -0.2E = 0.14E + -0.2E Combine like terms: 0.2E + -0.2E = 0.0 -0.1D + 0.0 = 0.14E + -0.2E -0.1D = 0.14E + -0.2E Combine like terms: 0.14E + -0.2E = -0.06E -0.1D = -0.06E Divide each side by '-0.1'. D = 0.6E Simplifying D = 0.6E
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