👤

Stiind ca: (x-3)×a+(x-3)×2b-5c×(x-3)=4850 si ca a+2b-5c=194,aflati x.

Răspuns :

Dam factor comun (x-3)

(x-3)×(a+2b-5c)=4850

(x-3)×194=4850

x-3=4850÷194

x-3=25

x=25+3

x=28