Question

\(\frac{\text{3}}{\text{4}}+\frac{\text{1}}{\text{4}}:x=\frac{\text{2}}{5}\)

biet x thuoc Q 

cac ban giup mik nhe cam on nhieu :3

 

Answer 1

\(\frac{1}{4}:x=-\frac{7}{20}\)

\(x=\frac{1}{4}:-\frac{7}{20}\)

\(x=-\frac{5}{7}\)

Answer 2

\(\frac{3}{4}+\frac{1}{4}\div x=\frac{2}{5}\)

\(\Rightarrow\frac{1}{4}\div x=-\frac{7}{20}\)

\(\Rightarrow x=\frac{1}{4}\div\left(-\frac{7}{20}\right)\)

\(\Rightarrow x=-\frac{5}{7}\)

Answer 3

1/4 : x=2/5 - 3/4

1/4 : x= - 7/20

x=1/4 : - 7/20

x=-5/7

k ủng hộ mk nha mọi người

k mk , mk k lại