Can you make 'p' the subject of the following equation? 4(p-2q)= 3p+2

When a question asks you to make something the subject of an equation, it is asking you to rearrange it to get it in the form of, for example when 'p' is the subject, 'p = ....'

First we want to expand the brackets, 

4p - 8q = 3p + 2

Then we want to get rid of the '-8q' on the left side, we do this by adding 8q to both sides (-8q + 8q = 0, that's why it 'disappears' from the left side)

4p = 3p + 2 + 8q

Now, notice how we have 'p's on both sides? We want to get them together onto one side (because the question was to make 'p' the subject), so we minus 3p from both sides (remember, you have to do the same thing to each side!)

p = 8q + 2

SM
Answered by Sarah M. Maths tutor

18581 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you simplify the following: (3^2)^3


solve to 2 decimal places; (2x+3/(x-4)) - 2x-8/(2x+1) = 1


Dave and Chris split £24 in the ratio 2:1, how much does each person get?


How do you calculate the hypotenuse of a right angle triangle if the two shorter sides are 6 and 8?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences