Question

tim x biet x/4 = 5/x+1

Answer 1

\(\frac{x}{4}=\frac{5}{x+1}\)

\(\Rightarrow x\left(x+1\right)=4.5\)

\(\Rightarrow x\left(x+1\right)=4\left(4+1\right)\)

\(\Rightarrow x=4\)

Answer 2

thank you very so much

Answer 3

Theo bài ra , ta có :

x/4 = 5/x+1 

(=) x(x+1) = 20 

(=) x = 4 

Vậy x = 4