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3:1-1:1x3+0x3–1x0x3+3x1x3+3–3x3=



Răspuns :

Răspuns:

3-1×3+0-0×3+3×3+3-9=3-3+0-0+9+3-9=0+0-0+9+3-9=0+9+3-9=9+3-9=12-9=3

Răspuns:

3:1-1=2

2:1x3=6

6+0x3=6

6-1x0x3=6

6+3x1x3=15

15+3-3x3=9