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Obecnie | Za 2 lata
Dorota 4x | 4x+2
Maciek x | x+2
4x+2=3(x+2)
4x+2=3x+6
x=4
Obecnie |
Dorota 4x=16 | 16+x
Maciek x=4 | 4+x
16+x=2(4+x)
16+x=8+2x
x-2x=8-16
-x=-8/:(-1)
x=8