Home » Aptitude » Algebra » Question
  1. If  
    3
    3
    3
    −6 =
    3
    2x − 1 , then x is equal to
    555
    1. –2
    2. 2
    3. –1
    4. 1
Correct Option: C

3
3
3
−6 =
3
2x − 1
555

⇒ 
3
3
3
−3
3
−3 =
3
2x − 1
5555

⇒ 
3
0
3
−3 =
3
2x − 1
555

⇒  2x – 1 = – 3
⇒  2x = – 3 + 1 = – 2
⇒  x = –1
Method : 2
3
3
3
−6 =
3
2x − 1
555

⇒ 
3
−6 + 3 =
3
2x − 1
55

⇒  –3 = 2x –1
⇒  –2 = 2x
⇒  x = –1



Your comments will be displayed only after manual approval.