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a = 5
sprawdzenie- 9 + a [ 5 ] = 16
b) a - 29 = 15
a = 44
spr. - 15 + 29 = 44
c) 12:m= 1/4
m = 3 bo 3 x 1/4 = 12
d) -
e) 12 1/3 + k = 16 5/6
trzeba sprowadzic to tego samego mianownika - 12 2/6 + k = 16 5/6
k = 4 3/6 bo 16 5/6 - 12 2/6 = 4 3/6
f ) 8 1/5 + l = 10 7/10
trzeba spr. do tego samego mianownika- 8 2/ 10 + c = 10 7/ 10
c = 2 5/ 10 bo 10 7/ 10 - 2 5/10 = 8 2/ 10
g) -
h) -