2x - [3y - {2x - (y - x)}] = ?
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Answer:
5x-4y
Step-by-step explanation:
2x - [3y - {2x - (y - x)}]
= 2x-[3y-{2x-y+x}]
= 2x-[3y-{3x-y}]
= 2x-[3y-3x+y]
= 2x-[4y-3x]
= 2x-4y+3x
= 5x-4y
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