Question

x-[x-(2-x)-1]= -1 (1-x)

Answer 1

x-[x-(2-x)-1]=-1(1-x)

x-[x-2+x-1]=-1+x

x-[2x-3]=-1+x

x-2x+3=-1+x

-x+3=-1+x

-x-x=-1-3

-2x=-4(-1)

2x=4

x=4/2

x=2(resposta)