Question

2 pe 5 •x +72= x va rog repedee!

Answer 1

$\dfrac{2}{5}\cdot{x}+72=x$
$\dfrac{2}{5}x+72=x$
$\dfrac{2}{5}x+^{5)}72=^{5)}x$
$2x+360=5x$
$2x-5x=-360$
$-3x=-360~~\big{|}\cdot{(-1)}$
$3x=360$
$x=360:3 \\ x=120$

Answer 2

Salut,

2/5 • x + 72 = x
2x/5+72 = x
2x+360 = 5x (am amplificat cu 5)
2x-5x = -360
-3x = -360 /•(-1)
3x = 360
x = 360/3
x = 120.


Succes! :3