Breve Reseña

HOJA DE EJERCICIOS
SUPRIME LOS SIGNOS DE AGRUPACION
1.- a+ (b-c)+2a-(a+b)
A+b-c+2a-a-b
= 2a-c

2.- 5x+ (-x-y)-[-y+4x]+ {x-6}
5x-x-y-[-y+4x]+{x-6}
5x-x-y+y-4x+ {x-6}
5x-x-y+y-4x+x-6
= x -6

M+ (4-6)+3m-(n+2m-1)
M+4-6+3m-(n+2m-1)
M+4-6+3m-m-2m+1
= 2m-1-n

8x +[-2xy+y]-{-x+xy-3y}-(x-3xy)
8x-2xy+y-{x+xy-3y}-(x-3xy)
8x-2xy+y+x-xy-3y-(x-3xy)
8x-2xy+y+x-xy-3y-x+3xy
= 8x + 4y
X+y+x-y+Z-x+y-Z
X+y

X+y-(x+2xy+y)+ (-x+y)X+y-x-2xy-y+ (-x+y)
X+y-x-2xy-y-x+y
=-x+y-2xy

4x+ [-(x-xy)+ (-3y+2xy)-(-3x+y)
4x+ [-x+xy-3y+2xy+3x-y]
4x-x+xy-3y+2xy+3x-y
=6x+3xy-4y4m-[2m+(n-3)]+ [-4n-(2m+1)]
4m-[2m+n-3]+ [-4n-2m-1]
4m-2m-n+3-4n-2n-1
=-5n+2

2m-[(m-n)-(m+n)]
2m-[m-n-m-n]
2m-m+n+m+n
=2m+2n

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

x-{-7xy+ [-y+ (-x+3xy-2y)]}
x-{-7xy+ [-y-x+3xy-2y]}
x-{-7xy-y-x+3xy-2y}x+7xy+y+x-3xy+2y
=2x+4xy+3y

7m-{-[m+3n-(5-n)-(-3+m)]}-(2n+3)
7m-{-[m+3n-(5-n)-(-3+m)]}-2n-3
7m-{-[m+3n-5+n+3-m]}-2n-37m-{-m-3n+5-n-3+m}-2n-3
7m+m+3n-5+n+3-m-2n-3
7m+2n-5

3x-(5y+ [-2x+ {y-(6+x)}-(-x+y)])
3x-(5y+[-2x+{y-(6+x)}+x-y])
3x-(5y+[-2x+{y-6-x}+x-y])3x-(5y+[-2x+y-6-x+x-y])
3x-(5y-2x+y-6-x+x-y)
3x-5y+2x-y+6+x-x+y)
6x-5y+6

-[3x+(-x-(2y-3)]+{-(2x+y)+(-x-3)+2-(x+y)}
2ª+{-[5-b+(3ª-c)+2-c-a+b-c+4)]-c—a+b)}2a+{-[5-b+3a-c+2+a-b+a-4]-c-a+b}
2a+{-5-b+3a-c+2+a-b+c-4]+a+b}
2a+{-5+b-3a+´c-2-a+b-c+4]+a+b}
2a-5+b-3a