Question

Elimine los paréntesis y luego reduzca términos semejantes. 1) 3x+2y-{x-(x-y)} 2) -(a+b-c)-(-a-b+c)+(a-b+c) 3) 3y-2y-[3x-(x-{y-(y-x)-y})] 4) -4-(x-y)-5+(x+3y)-2-{x-3y+5-(-x+y-1+2+(x-y))} 5) -{+[(x-y+z)]}+{-[(z+x-y)]}-{[-(x+y)]}

Answer 1

1) 3x+2y-{x-(x-y)}
3x+2y-{x-x+y}
3x+2y-x+x-y
3x+y

2) -(a+b-c)-(-a-b+c)+(a-b+c)
-a-b+c+a+b-c+a-b+c
a-b+c


3) 3y-2y-[3x-(x-{y-(y-x)-y})]
3y-2y-[3x-(x-{y-y+x-y})]
3y-2y-[3x-(x-{x-y})]
3y-2y-[3x-(x-x+y)]
3y-2y-[3x-(y)]
3y-2y-[3x-y]
3y-2y-3x+y
2y-3x

4) -4-(x-y)-5+(x+3y)-2-{x-3y+5-(-x+y-1+2+(x-y))}
-4-(x-y)-5+(x+3y)-2-{x-3y+5-(-x+y-1+2+x-y)}
-4-(x-y)-5+(x+3y)-2-{x-3y+5-(1)}
-4-(x-y)-5+(x+3y)-2-{x-3y+5-1}
-4-(x-y)-5+(x+3y)-2-x+3y-4
-4-x+y-5+x+3y-2-x+3y-4
-15-x+7y

5) -{+[(x-y+z)]}+{-[(z+x-y)]}-{[-(x+y)]}
-x+y-z-z-x+y+x+y
-x+3y-2z