Question

Afla x daca 2a+b = 5 a) 4ax + 2bx+2=22

Answer 1

2 a + b = 5

a)  4 a X + 2 b X + 2 = 22

2 × X × ( 2 a + b ) + 2 = 22

2 × X × 5 = 22 - 2

10 × x = 20

x = 20 : 10

x = 2