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22-×=11
#:
#:
V:
X-5=25
#:25-x =5
#:
V:
X+11=23
#:23-x
#:
V:
x+21=26
#: -
#:
V:


Răspuns :

Răspuns:

22 - X = 11

X = 22 - 11

X = 11

V : 22 - 11 = 11

X - 5 = 25

X = 25 + 5

X = 30

V: 30 - 5 = 25

25 - X = 5

X = 25 - 5

X = 20

V: 25 - 20 = 5

X + 11 = 23

X = 23 - 11

X = 12

V: 12 + 11 = 23

X + 21 = 26

X = 26 - 21

X = 5

V: 5 + 21 = 26