Question

[☘-P❣N❣T-❀Huyền❀-☘]

Tìm x ϵ Q, biết rằng:

a) 11/12- (2/5+x)=2/3

b) 3/4+1/4:x=2/3

giúp mk nhé thanks trc ! mai mk phải nộp bài r

Answer 1

[Edowa Conan]

a)\(\frac{11}{12}-\left(\frac{2}{5}+x\right)=\frac{2}{3}\)

    \(\frac{2}{5}+x=\frac{1}{4}\)

    \(x=\frac{1}{4}-\frac{2}{5}\)

    \(x=-\frac{3}{20}\)

Vậy \(x=-\frac{3}{20}\)

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

    \(\frac{1}{4}:x=-\frac{1}{12}\)

    \(x=\frac{1}{4}:\left(-\frac{1}{12}\right)\)

    \(x=-3\)

Vậy \(x=-3\)

Answer 2

[☘-P❣N❣T-❀Huyền❀-☘]

yeah thank you !