Question

Giúp mình với . Cảm ơn nhiều nhé.

Answer 1

\(\dfrac{3}{4}\times x+2x=\dfrac{3}{4}-\dfrac{1}{8}=\dfrac{6}{8}-\dfrac{1}{8}=\dfrac{5}{8}\)

<=> \(\dfrac{3x}{4}+2x=\dfrac{5}{8}\)

<=> \(\dfrac{3x.2}{4.2}+\dfrac{2x\times8}{8}=\dfrac{5}{8}\)

<=> \(\dfrac{6x}{8}+\dfrac{16x}{8}=\dfrac{5}{8}\)

<=> 6x + 16x = 5 

<=> 22x = 5 

=> x = 5 / 22

Answer 2

Answer 3

a)\(=>x\times\left(\dfrac{3}{4}+2\right)=\dfrac{6}{8}-\dfrac{1}{8}=\dfrac{5}{8}\)

\(=>x=\dfrac{5}{8}:\left(\dfrac{3}{4}+2\right)=\dfrac{5}{8}:\dfrac{22}{8}=\dfrac{5}{22}\)