Question

x/27 - 2/9 = 6/18

tìm x.

ai tìm đc ra cách giải đầu tiên mk sẽ cho 1 like

Answer 1

\(\frac{x}{27}-\frac{2}{9}=\frac{6}{18}\)

\(=>\frac{2x}{2.27}-\frac{2.6}{9.6}=\frac{6.3}{6.18}\)

\(=>\frac{2x}{54}-\frac{12}{54}=\frac{18}{54}\)

Rồi ta khử mẫu nha

\(=>2x-12=18\)

\(=>2x=18+12\)

\(=>2x=30\)

\(=>x=15\)

Mik làm nhanh nhất nha 

T mik thì nói nha

Answer 2

\(\frac{x}{27}-\frac{2}{9}=\frac{6}{18}\)

\(\frac{x}{27}=\frac{6}{18}+\frac{2}{9}\)

\(\frac{x}{27}=\frac{6}{18}+\frac{4}{18}\)

\(\frac{x}{27}=\frac{10}{18}\)

\(\frac{x}{27}=\frac{5}{9}\)

\(\Rightarrow x\div27=\frac{5}{9}\)

\(\Rightarrow x=\frac{5}{9}\times27\)

\(\Rightarrow x=15\)

Answer 3

\(\frac{x}{27}-\frac{2}{9}=\frac{6}{18}\)

\(\frac{x}{27}=\frac{6}{18}+\frac{2}{9}\)

\(\frac{x}{27}=\frac{5}{9}\)

\(x=\frac{5}{9}.27\)

\(x=15\)

Answer 4

sai rồi

Answer 5

\(\frac{x}{27}-\frac{2}{9}=\frac{6}{18}\)

\(\frac{x}{27}=\frac{6}{18}+\frac{2}{9}\)

\(\frac{x}{27}=\frac{6}{18}+\frac{4}{18}\)

\(\frac{x}{27}=\frac{5}{9}\)

\(x=\frac{5.27}{9}\)

\(x=15\)

Answer 6

x/27 - 2/9 = 6/18

x/27 = 6/18 + 2/9

x/27 = 6/18 + 4/18

x/27 = 10/18

x/27 = 5/9

x : 27 = 5/9

x = 5/9 x 27

x = 15

Answer 7

Bọn 

chép bài 

nhục 

nhục

Answer 8

\(\frac{x}{27}-\frac{2}{9}=\frac{6}{18}\)

\(\frac{x}{27}-\frac{6}{27}=\frac{6}{18}\)

\(\frac{x-6}{27}=\frac{6}{18}\)

\(x-6=\frac{6}{18}\cdot27\)

\(x-6=9\)

x=15

Answer 9

x/27-2/9=6/18

x/27-6/27=9/27

(x-6)/27=9/27

x-6=9

x=15

Answer 10

x/27 - 2/9 = 6/18

x/27 = 6/18 + 2/9

x/27 = 6/18 + 4/18

x/27 = 10/18

x/27 = 5/9

x : 27 = 5/9

x = 5/9 x 27

x = 15