Question

quien sabe esto xd.....​

Answer 1

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                            Respuesta:

1)

$-4-\left(x+y\right)-5+\left(x+3y\right)-2-\left(x-3y+5-\left(-x+y-1+2+\left(x-y\right)\right)\right)$

$-4-\left(x+y\right)-5+x+3y-2-\left(x+5-3y-\left(x-x+y+2-y-1\right)\right)$

$-4-\left(x+y\right)-5+x+3y-2-\left(x+4-3y\right)$

$-4-x-y-5+x+3y-2-x-4+3y$

$5y-x-15$

2)

$-\left(\left(\left(x-y+z\right)\right)\right)+\left(-\left(\left(z+x-y\right)\right)\right)-\left(\left(-\left(x+y\right)\right)\right)$

$-\left(x-y+z\right)-\left(z+x-y\right)+x+y$

$-2\left(x+z-y\right)+x+y$

$-2x+2y-2z+x+y$

$-x+3y-2z$

Espero que te sirva :D

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