Question

[Nguyễn Mai Anh]

8,15 x X +1,85 x X = 124

Answer 1

[ILoveMath]

\(8,15\times x+1,85\times x=124\\ \Rightarrow x\times\left(8,15+1,85\right)=124\\ \Rightarrow x\times10=124\\ \Rightarrow x=124:10\\ \Rightarrow x=12,4\)

Answer 2

[Vĩnh biệt em, chị để mất em rồi.]

\(8,15\times x+1,85\times x=124\)

\(\left(8,15+1,85\right)\times x=124\)

\(10\times x=124\)

\(x=124:10\)

\(x=12,4\)

@muối