Question

2.x-(17-x)=x-9

Answer 1

Ta có: 2x-(17-x)=x-9

=>2x-17+x=x-9

=>2x-17+x-x+9=0

=>2x-8=0

=>2x =8

=>x =4

Answer 2

Ta có: \(2x-\left(17-x\right)=x-9\)

\(\Rightarrow2x-17+x=x-9\)

\(\Rightarrow2x-17+x-x+9=0\)

\(\Rightarrow2x-8=0\)

\(\Rightarrow2x=8\)

\(\Rightarrow8:2\)

\(\Rightarrow x=4\)

Answer 3

Ta có: 2x-(17-x)= x-9
=>2x-17+x = x-9
=>2x-17+x+x+9=0
=>2x-8 =0
=>2x =8
=>x =4