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

19866 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Paul organised an event for a charity. Each ticket for the event cost £19.95 Paul sold 395 tickets. Paul paid costs of £6000 He gave all money left to the charity. (a) Work out an estimate for the amount of money Paul gave to the charity.


A plane flew from Frankfurt to Hong Kong. The flight time was 10hours 45minutes. The average speed was 852km/h. Work out the distance the plane flew.


If the probability of picking a red ball out of bag A is 2/5 and the probability of picking a red ball out of bag B is 3/7, what is the chance that you will pick exactly 2 red balls if you pick 2 balls from A and 1 ball from B? The balls are not replaced.


The point P has coordinates (3, 4) The point Q has coordinates (a, b) A line perpendicular to PQ is given by the equation 3x + 2y = 7 Find an expression for b in terms of a.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning