Question

Calculati : 7x-5=2x+13=?

Answer 1

$\displaystyle 7x-5=2x+13 \\ 7x-2x=13+5 \\ 5x=18 \\ x= \frac{18}{5}$

Answer 2

7x=5+13+2x=18+2x
⇒5x=18⇒x=18/5=3,6;