Question

(Z-1,2):0,6=21,1 
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Answer 1

$(x-1.2):0.6=21.1|*10 \ 10(x-1.2)=211*0.6 \ 10(x-1.2)=126.6 \ x-1.2=126.6:10 \ x-1.2=12.66 \ x=12.66+1.2 \ x=13.86$