x.3.6=0,17.0,9
x.18=0.119
x=0.119:18
x=\(\frac{119}{18000}\)
2,3:2,8.x=57,5
\(\frac{23}{28}\).x=57.5
x=57,5:23/28
x=70
0.16:(x:3,5)=2,8
x:3.5=0.16:2,8
x:3,5=2/35
x=2/35x3,5
x=0.2
k mình nha k b nữa...^_^...thanks♥
\(3,6x=0,17\cdot0,9\)
\(\Rightarrow3,6x=0,153\)
\(\Rightarrow x=0,153:3,6\)
\(\Rightarrow x=0,0425\)
\(2,3:2,8x=57,5\)
\(\Rightarrow2,3:57,5=2,8x\)
\(\Rightarrow2,8x=0,04\)
\(\Rightarrow x=\frac{0,04}{2,8}\)