Question

afla x daca 2a+b=5 si : 4ax+2bx+2=22

Answer 1

Din   4ax+2bx+2=22 dand factor comun pe 2x ⇒
2X(2a+b)+2=22  dar 2a+b =5 ⇒
2X·5 +2=22
10X = 22-2
10X=20
X=20/10
X=2