Question

X +X ×2,7+X×6,3 =1,2:0,01

 

Answer 1

\(x+x\times2,7+x\times6,3=1,2:0,01\\ \Rightarrow x\times1+x\times2,7+x\times6,3=120\\ \Rightarrow x\times\left(1+2,7+6,3\right)=120\\ \Rightarrow x\times10=120\\ \Rightarrow x=120:10\\ \Rightarrow x=12\)

Vậy `x=12`