Simplify:
2x – 3y - [3x – 2y - {x – z-(x - 2y)}]
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Step-by-step explanation:
= 2s - 3s - 3s - 2s- {X - Z - x + 2s} u 2s - 3s 3x - 2s - x + z + s - 2s u 2s - 3s -3s + 2s + x - z - x + 2y
= 2x -3x - zy + 2y + 2y - z = -c + u - z
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