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-7x=28
-108:x=-18 coroana ​


Răspuns :

-7x=28

x= 28/-7

x= -4

-108:x= -18

x= -108/-18

x= 6

-7x=28

x=28:(-7)

x=-4

-108:x=-18

x=-108:(-18)

x=6