Homework Help

What is x if (x-1)/3=2?

user profile pic

medausza | Student, College Freshman | eNotes Newbie

Posted August 23, 2011 at 7:15 PM via web

dislike 1 like

What is x if (x-1)/3=2?

2 Answers | Add Yours

user profile pic

giorgiana1976 | College Teacher | Valedictorian

Posted August 23, 2011 at 7:17 PM (Answer #1)

dislike 0 like

First, we need to shift the term from the right side to the left side, such as:

(x-1)/3 - 2 = 0

Before subtracting the terms, they need to have a common denominator, which is 3:

(x - 1 - 6)/3 = 0

We'll cancel the numerator:

x - 7 = 0

We'll add 7 both sides:

x = 7

The requested value of x is x = 7.

user profile pic

lubnafahoum | Student, Grade 10 | eNotes Newbie

Posted August 23, 2011 at 11:22 PM (Answer #2)

dislike 0 like

if (x-1)/3=2

then you should first multiply both sides by 3 to get x-1=6

if x-1=6, add one to both sides to find the value of x, thus getting your answer.

therefore, x=7.

you can use the method above for more than just this question, apply it to other mathematical questions that are like this and it should work.

hope that helped.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes