\(x.2,5-x.1,5=5\)
\(x.\left(2,5-1,5\right)\)\(=5\)
\(x.1=5\)
\(x=5:1\)
\(x=5\)
\(x\times2,5-x\times1,5=5\)
\(x\times\left(2,5-1,5\right)=5\)
\(x\times1=5\)
\(x=5:1\)
\(x=5\)
mik nhah nhất đó
\(x\left(2.5-1.5\right)=5\)
\(\Rightarrow1x=5\)
\(\Rightarrow x=5\)