Question

 \(\frac{2x}{3}-\frac{x}{4}=\frac{5}{6}\)

giúp mình nha

Answer 1

\(\frac{2x}{3}-\frac{x}{4}=\frac{5}{6}\)

\(\Leftrightarrow\frac{2x}{3}.12-\frac{x}{4}.12=\frac{5}{6}.12\)

<=> 8x - 3x = 10

<=> 5x = 10

<=> x = 10 : 5

<=> x = 2

=> x = 2

Answer 2

cảm ơn leona nhiều lắm!!!

Answer 3

\(\frac{2x}{3}-\frac{x}{4}=\frac{5}{6}\)

\(\Rightarrow\frac{4\cdot2x}{12}-\frac{3x}{12}=\frac{5}{6}\)

\(\Rightarrow\frac{8x}{12}-\frac{3x}{12}=\frac{5}{6}\)

\(\Rightarrow\frac{5x}{12}=\frac{5}{6}\)

\(\Rightarrow\frac{5x}{12}=\frac{5\cdot2}{12}\)

\(\Rightarrow\frac{5x}{12}=\frac{10}{12}\)

\(\Rightarrow5x=10\)

\(\Rightarrow x=2\)

Vậy \(\Rightarrow S=\left\{2\right\}\)