Question

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

Answer 1

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

<=>5x+10+2x=x-5

<=>7x-x=-5-10

<=>6x=-15

<=>x=-15/6

Answer 2

suy ra 5x+10+2x=x-5

suy ra 7x+10=x-5

suy ra 7x-x=-10-5

suy ra 6x=-15

suy ra x=-15/6

Answer 3

Ta có: 5(x+2) +2x = x-5

\(\Rightarrow\) 5x+10 + 2x -x+5=0

Hay 6x + 15 = 0

\(\Rightarrow\) 6x = -15

\(\Leftrightarrow\) x = \(\frac{-15}{6}\) =\(\frac{-5}{2}\)

Vậy x= \(\frac{-5}{2}\)