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a fost răspuns

1,25x=0,2(7)
1×1,(3)x=2,5

Răspuns :

Люба3
x=0.15 x=-0.5 ..!!!!!!!!!!!!!
Renatemambouko
1,25x=0,2(7)
0,2(7)=(27-2)/90=25/90=5/18
125x/100=5/18
5x/4=5/18
x/4=1/18
x=4/18
x=2/9

1×1,(3)x=2,5 1,(3)=(13-1)/9=12/9=4/3
4x/3=25/10
4x/3=5/2
x=15/8