Question

5+[x-{2y-(6x+y-4)+2x}-(x-(y-2)}]​

Answer 1

Answer:

$5+\left(x-2y-\left(6x+y-4\right)+2x-\left(x-\left(y-2\right)\right)\right)\\= 5+x-2y-\left(6x+y-4\right)+2x-\left(x-\left(y-2\right)\right)\\= 5+x-2y-\left(6x+y-4\right)+2x-\left(x+2-y\right)\\= 5+x-2y-6x-y+4+2x-\left(x-y+2\right)\\= 5+x-2y-6x-y+4+2x-x+y-2\\= 7-4x-2y$

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