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Simplifying 0.7x + 0.3(x + -1) = 0.5 Reorder the terms: 0.7x + 0.3(-1 + x) = 0.5 0.7x + (-1 * 0.3 + x * 0.3) = 0.5 0.7x + (-0.3 + 0.3x) = 0.5 Reorder the terms: -0.3 + 0.7x + 0.3x = 0.5 Combine like terms: 0.7x + 0.3x = 1x -0.3 + 1x = 0.5 Solving -0.3 + 1x = 0.5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + 1x = 0.5 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + 1x = 0.5 + 0.3 1x = 0.5 + 0.3 Combine like terms: 0.5 + 0.3 = 0.8 1x = 0.8 Divide each side by '1'. x = 0.8 Simplifying x = 0.8
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