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daca x+3-m si m-1= -1

Răspuns :

x + 3 - m =?

m-1= -1
m= -1+1
m=0

x+ 3 - 0=
x=0+3
x=3
1-1=0 (m)
x+3-0=
0+3=3 (x)

P: 0-1=-1
    3+3-0=6