Question

Giải giúp với ạ

Answer 1

c) \(2\cdot\left(x+1\right)=3x-5\)

\(2x+2=3x-5\)

\(2x+2-3x+5=0\)

\(-x+2=-5\)

\(-x=-7\)

`=>x=7`

f) \(3x-2\left(x-3\right)=6\)

\(3x-2x+6=6\)

\(x=6-6\)

`=>x=0`

i) \(3x+1=5x+2\)

\(3x+1-5x-2=0\)

\(\left(3x-5x\right)+1=2\)

\(-2x=2-1=1\)

`=>x=-1:2=-1/2`

 

Answer 2

c: =>3x-5=2x+2

=>x=7

f: =>3x-2x+6=6

=>x+6=6

hay x=0

i: =>-2x=1

=>x=-1/2