Question

Reduza os termos semelhantes nessa expressoes algebricas 3×+[2y-[5×-(y+×)]

Answer 1

$3x+[2y-[5x-(y+x)]]= \\ 3x+[2y-[5x-y-x]]= \\ 3x+[2y-5x+y+x]= \\ 3x+2y-5x+y+x= \\ 3x+x-5x+2y+y= \\ 4x-5x+3y= \\ -x+3y$