Question

7/9 : (2 + 3/4x) +5/9 = 23/27

tìm x nha các bạn

 

Answer 1

\(\frac{7}{9}:\left(1+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)

\(\frac{7}{9}:\left(1+\frac{3}{4}x\right)=\frac{8}{27}\)

\(\left(1+\frac{3}{4}x\right)=\frac{21}{8}\)

\(\frac{3}{4}x=\frac{13}{8}\)

\(x=\frac{13}{8}:\frac{3}{4}\)

\(x=\frac{13}{6}\)

Vậy \(x=\frac{13}{6}\)

Answer 2

\(\frac{7}{9}:\left(2+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)

\(\frac{7}{9}:\left(2+\frac{3}{4}x\right)=\frac{23}{27}-\frac{5}{9}\)

\(2+\frac{3}{4}x=\frac{7}{9}:\frac{8}{27}=\frac{21}{8}\)

\(\frac{3}{4}x=\frac{21}{8}-2=\frac{5}{8}\)

\(x=\frac{5}{8}:\frac{3}{4}=\frac{5}{6}\)

Vậy x=5/6

Answer 3

Lấy máy tính bấm là đc mà bn

Answer 4

7/9:(2+3/4x)+5/9=23/27

7/9:(2+3/4x)=23/27 - 5/9

7/9:(2+3/4x)=8/27

(2+3/4x)=7/9:8/27

(2+3/4x)=21/8

3/4x=2-21/8

3/4x = -5/8

x      =   -5/8 : 3/4      

x      =-5/6