(x+20) :12+68=78 ajutor!!!



Răspuns :

(x+20):12+68=78
(x+20):12=78-68
(x+20):12=10
x+20=12•10
x+20=120
x=120-20
x=100
Sper ca te-am ajutat!!!
(x+20):12+68=78
(x+20):12=78-68=10
x+20=12×10=120
x=120-20
x=100