deadline dí chết hay sao mà căng vậy;-;
\(a,x\times0,26=1,17\times1,04\\ \Rightarrow x\times0,26=1,2168\\ \Rightarrow x=1,2168:0,26\\ \Rightarrow x=4,68\\ b,x\times1,28=4,48\times3,84\\ \Rightarrow x\times1,28=17,2032\\ \Rightarrow x=17,2032:1,28\\ \Rightarrow x=13,44\)
d: =>1,28x=17,2032
hay x=13,44
a,x×0,26=1,17×1,04
x×0,26=1,2168
x=1,2168:0,26
x=4,68
b,x×1,28=4,48×3,84
x×1,28=17,2032
x=17,2032:1,28
x=13,44