rozwionz i sprawdzi równanie a) 7 4/9+x=10 1/27 b) 10 9/10-x=7 9/12 c) x+24 5/36=100 13/18 d) x-61 7/2=27 11/18
a)
7 4/9 +x=10 1/27
x=10 1/27 - 7 4/9
x=10 1/27 - 7 12/27
x=2 16/27
b)
10 9/10-x=7
10,9-x=7
10,9-7=x
x=3,9
c)
x+24 5/36=100 13/18
x=100 26/38-24 5/36
x=76 21/38
d)
x-61 7/2=27 11/18
x=27 11/18 +63/18
x=90 74/18=94 2/18 = 94 1/9
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a)
7 4/9 +x=10 1/27
x=10 1/27 - 7 4/9
x=10 1/27 - 7 12/27
x=2 16/27
b)
10 9/10-x=7
10,9-x=7
10,9-7=x
x=3,9
c)
x+24 5/36=100 13/18
x=100 26/38-24 5/36
x=76 21/38
d)
x-61 7/2=27 11/18
x=27 11/18 +63/18
x=90 74/18=94 2/18 = 94 1/9