Question

Tìm x biết :

5/7+x/35=4/5

Answer 1

\(\dfrac{5}{7}+\dfrac{x}{35}=\dfrac{4}{5}\)
\(\dfrac{x}{35}=\dfrac{4}{5}-\dfrac{5}{7}\)
\(\dfrac{x}{35}=\dfrac{28}{35}-\dfrac{25}{35}\)
\(\dfrac{x}{35}=\dfrac{3}{35}\)
\(x=3\)

#Sahara

Answer 2

nhanh lên mọi ngừi ơi , mình đang vội

Answer 3

75​+35x​=54​
\dfrac{x}{35}=\dfrac{4}{5}-\dfrac{5}{7}35x​=54​−75​
\dfrac{x}{35}=\dfrac{28}{35}-\dfrac{25}{35}35x​=3528​−3525​
\dfrac{x}{35}=\dfrac{3}{35}35x​=353​
$x=3$