Question

[Đạt]

Tìm x

X x 0,99 + X : 100 = 2019

Answer 1

[ILoveMath]

\(x\times0,99+x:100=2019\\ \Rightarrow x\times0,99+x\times0,01=2019\\ \Rightarrow x\times\left(0,99+0,01\right)=2019\\ \Rightarrow x\times1=2019\\ \Rightarrow x=2019\)