afla-l pe b din ecuatia (bx4+20):2=54

Răspuns :

Salut,

(b•4+20):2 = 54
4b+20 = 54•2
4b+20 = 108
4b = 108-20
4b = 88
b = 88/4
b = 22.



Succes! :3
b × 4 + 20 = 54x 2
4b = 108- 20
b= 88÷4
b=22