Question

bài 1: Tìm x

2X-20=x+10

trả lời nhanh giúp mình nha

Answer 1

Ta có : 2x - 20 = x + 10

  =>  2x - x      = 20 + 10

 =>    x            = 30

Answer 2

\(2x-20=x+10\)

\(2x-x=10+20\)

\(x=30\)

Answer 3

\(2x-20=x+10\)

\(\Leftrightarrow2x-x=10+20\)

\(\Leftrightarrow x=30\)

Answer 4

#)Giải :

\(2x-20=x+10\)

\(\Leftrightarrow2x-x=20+10\)

\(\Leftrightarrow x=20+10\)

\(\Leftrightarrow x=30\)

Answer 5

2x- 20 = x +10 

=> x = 10 + 20 

=> x = 30 

Vậy x = 30 

Answer 6

\(2x-20=x+10\)

\(\Leftrightarrow2x-x=10+20\)

\(\Leftrightarrow x=30\)

Vậy...

Answer 7

\(2x-20=x+10\)

\(\Rightarrow2x-x=10+20\)

\(\Rightarrow x=30\)

Answer 8

Bài giải

\(2x-20=x+10\)

\(\Rightarrow\text{ }2x-x=20+10\)

\(x=30\)

Answer 9

2x - 20 = x + 10 

2x -      x = 20 + 10

            x = 30