Question

determinati 15 supra 3 sa fie echivalente cu 2x+1 supra 27

Answer 1

15/3 = (2x+1)/27  
5/1 = (2x+1)27  
2x+1 = 5 × 27
2x +1 = 135
2x = 135 - 1
x = 134/2
x = 67

Answer 2

15\3=2x+1\27⇒3(2x+1)=15x27⇒6x+3=405⇒6x=405-3⇒6x=402⇒
x=402\6⇒x=67
succes