Dễ lam thì tự làm đi hỏi làm gì cho mệt
\(x+x\times\frac{3}{2}+x\times\frac{7}{2}=252\)
\(x\times\left(\frac{3}{2}+\frac{7}{2}+1\right)=252\)
\(x\times6=252\)
\(\Rightarrow x=252\div6=42\)
Vậy \(x=42\)
\(x+x\times\frac{3}{2}+x\times\frac{7}{2}=252\)
\(x\times\left(\frac{3}{2}+\frac{7}{2}+1\right)=252\)
\(x\times6=252\)
\(x=252:6\)
\(x=42\)
\(x+x.\frac{3}{2}+x.\frac{7}{2}=252\)
\(x.1+x.\frac{3}{2}+x.\frac{7}{2}=252\)
\(x\left(1+\frac{3}{2}+\frac{7}{2}\right)=252\)
\(x.6=252\)
x = 252 : 6
x = 42
