Question

x+7 phần 13 =10 phần 13

 

Answer 1

x=3/13

Answer 2

\(\dfrac{x+7}{13}=\dfrac{10}{13}\)

\(\Leftrightarrow13\left(x+7\right)=13.10\)

\(\Leftrightarrow13x+91=130\)

\(\Leftrightarrow13x=39\)

\(\Leftrightarrow x=3\)

Answer 3

\(\dfrac{x+7}{13}=\dfrac{10}{13}\Rightarrow\dfrac{x}{13}+\dfrac{7}{13}=\dfrac{10}{13}\Rightarrow\dfrac{x}{13}=\dfrac{3}{13}\Rightarrow x=3\)

Answer 4

\(\dfrac{x+7}{13}=\dfrac{10}{13}\)

<=> x + 7 = 10

<=> x = 3

 

Answer 5

\(x+\dfrac{7}{13}=\dfrac{10}{13}\)

\(\Leftrightarrow x=\dfrac{10}{13}-\dfrac{7}{13}=\dfrac{3}{13}\)