Question

tìm x biết :   x/3 - 4/9 = 1/5

giúp mik đi các bạn ơi !!!

Answer 1

sai đề hay sao ý tính ra lẻ

Answer 2

x/3 - 4/9 = 1/5

=> x/3 = 1/5 + 4/9

=> x/3 = 29/45

=> 15x/45 = 29/45

=> 15x = 29

=> x = 29/15

Answer 3

x/3 - 4/9 = 1/5

x/3 = 1/5 + 4/9

x/3 = 29/45

15x/49 = 29/45

15x = 29

x = 29/15

Answer 4

\(\frac{x}{3}-\frac{4}{9}=\frac{1}{5}\)

\(\frac{x}{3}=\frac{1}{5}+\frac{4}{9}\)

\(\frac{x}{3}=\frac{29}{45}\)

\(\Rightarrow45.x=29.3\)

\(\Rightarrow45.x=87\)

\(\Rightarrow x=87:45\)

\(\Rightarrow x=\frac{29}{15}\)

~ Hok tốt ~

Answer 5

x = 29 / 15

Answer 6

\(\frac{x}{3}-\frac{4}{9}=\frac{1}{5}\)

\(\Leftrightarrow\frac{x}{3}=\frac{1}{5}+\frac{4}{9}\)

\(\Leftrightarrow\frac{x}{3}=\frac{9}{45}+\frac{20}{45}\)

\(\Leftrightarrow\frac{15x}{45}=\frac{29}{45}\)

\(\Leftrightarrow15x=29\)

\(\Leftrightarrow x=\frac{29}{15}\)

Answer 7

X = 29/15 Nha ae