Rozwiąż równania (oblicz niewiadomą liczbę x)
a)
7 11/20 +x=9 7/20
b)
x+5 11/15= 7 2/15
c) x-4 5/8= 2 3/8
d)
11 4/9 -x =5 7/9
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a) 9 7/20 - 11/20=8 16/20
b)6 6/9+5 11/15= 7 2/15 6 6/9
c) 7-4 5/8= 2 3/8
d)11 4/9 -5 6/9 =5 7/9