Answer :
[tex]5x = 2x + 20 \\ subtract--------\ \textgreater \ -2x
\\ 3x = 20 \\ Divide -----\ \textgreater \ 3x \\ \\ x = 6 \frac{2}{3} [/tex]
I don't know. But I know how to find it. Let's work it out together:
5x = 2x + 20
Subtract 2x from each side: 3x = 20
Divide each side by 3 : x = 20/3 or ( 6 and 2/3 ).