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Cat face 5:3 ×x +2:9=4:3 x=?

Răspuns :

5/3*+2:9=4:3
5/3x+2/9=4:3
5/3x+2/9=4/3
5/3x=4/3-2/9
5/3x=3*4-1*2/9
5/3x=3*4-2/9
5/3x=12-2/9
5/3x=10/9
x=10/9:5/3
x=10/9*3/5
x=2/9*3
x=2/3*1
x=2/3

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