Question

a-(2a-2)=? m-2(3-2m)=? a-(b+(c-b))=? -(5x+y)-3(2x-3x)=? x-3(4-2x)=? 2a+(x+y)-2(a+b)=?

Answer 1

a-(2a-2)=-a+2
m-2(3-2m)=5m-6
a-(b+(c-b))=a-c
-(5x+y)-3(2x-3y)=-11x+8y
x-3(4-2x)==7x-12
2a+(x+y)-2(a+b)=x+y-2b

Answer 2

a-(2a-2)=a-2a+2=2-a

m-2(3-2m)=m-6+4m=5m-6

a-(b+(c-b))=a-b-c+b=a-c

-(5x+y)-3(2x-3x)=-5x-y+3x=-2x-y

x-3(4-2x)=x-12+6x=7x-12

2a+(x+y)-2(a+b)=2a+x+y-2a-2b=x+y-2b