\(\frac{24+x}{50+x}=\frac{3}{5}\Rightarrow\left(24+x\right)\cdot5=\left(50+x\right)\cdot3\)3
hay \(120+24x=150+50x\)
suy ra 50x-24x=150-120 hay 26x = 30 \(\Rightarrow x=\frac{26}{30}\)
Đúng 0
Bình luận (0)