You are Here: Home >< Maths

# Changing the subject formula watch

1. Hi can anyone work out these equations but break it down or step by step to how you get to the answer please. I'm getting the hang of subject formula but I just can't figure these 2 questions out. Thank you!

1.) Rearrange y= 1/2x + 2 to make x the subject

2.) Rearrange y= 1/3x + 1 to make x the subject
2. (Original post by xDivax90x)
Hi can anyone work out these equations but break it down or step by step to how you get to the answer please. I'm getting the hang of subject formula but I just can't figure these 2 questions out. Thank you!

1.) Rearrange y= 1/2x + 2 to make x the subject

2.) Rearrange y= 1/3x + 1 to make x the subject
Assuming it's then try subtracting 2 from both sides and then multiplying both sides by 2.

Assuming it's , try subtracting 2 from both sides then taking the reciprocal of both sides, culminating in a division of 2 of both sides.

Rinse and repeat for the second equation.
3. (Original post by xDivax90x)
Hi can anyone work out these equations but break it down or step by step to how you get to the answer please. I'm getting the hang of subject formula but I just can't figure these 2 questions out. Thank you!

1.) Rearrange y= 1/2x + 2 to make x the subject

2.) Rearrange y= 1/3x + 1 to make x the subject
for the first

start by subtracting 2 from both sides

or

multiply each of the 3 terms of the equation by 2
4. (Original post by Zacken)
Assuming it's then try subtracting 2 from both sides and then multiplying both sides by 2.

Assuming it's , try subtracting 2 from both sides then taking the reciprocal of both sides, culminating in a division of 2 of both sides.

Rinse and repeat for the second equation.
Sorry realised the equation didn't form right.

It's....

1.) x + 2

2.) x + 1
5. (Original post by xDivax90x)
Sorry realised the equation didn't form right.

It's....

1.) x + 2
Then it's the first option in my post, subtract 2 from both sides and then multiply both sides by 2, that should isolate x.

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 22, 2016
Today on TSR

### Summer Bucket List is Back!

Start yours and you could win £150!

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams