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Va rog mult:(x+25)-(x-12)=13
2x-6=14-2x
(44-x)+(x-35)=0


Răspuns :

(x+25)-(x-12)=13
x+25-x+12=13
37=13
2x-6=14-2x
2x+2x=14+6
4x=20
x=20/4
x=5
(44-x)+(x-35)=0
44-x+x-35=0
44-35=9