\(\Rightarrow1,5x+3,5+x=18\)
\(\Rightarrow\left(1,5+1\right)x+3,5=18\)
\(\Rightarrow2,5x=18-3,5\)
\(\Rightarrow2,5x=14,5\)
\(\Rightarrow x=14,5:2,5=5,8\)
vậy.......
150% x + 7/2 +x =18
3/2 x +7/2 +x = 18
\(x\times\left(\frac{3}{2}+1\right)+\frac{7}{2}=18\)
\(x\times\frac{5}{2}+\frac{7}{2}=18\)
\(x\times\frac{5}{2}=18-\frac{7}{2}\)
\(x\times\frac{5}{2}=\frac{29}{2}\)
\(x=\frac{29}{2}:\frac{5}{2}\)
\(x=\frac{29}{5}\)
Chúc bn học tốt !!!!!
\(150\%x+\frac{7}{2}+x=18\)
\(\frac{3}{2}x+\frac{7}{2}+x=18\)
\(x.\left(\frac{3}{2}+1\right)+\frac{7}{2}=18\)
\(x.\left(\frac{3}{2}+\frac{2}{2}\right)+\frac{7}{2}=18\)
\(x.\frac{5}{2}+\frac{7}{2}=18\)
\(x.\frac{5}{2}=18-\frac{7}{2}\)
\(x.\frac{5}{2}=\frac{36}{2}-\frac{7}{2}\)
\(x.\frac{5}{2}=\frac{29}{2}\)
\(x=\frac{29}{2}:\frac{5}{2}\)
\(x=\frac{29}{2}.\frac{2}{5}\)
\(x=\frac{29}{5}\)
Vậy \(x=\frac{29}{5}\)
Chúc bạn học tốt !!!
