Rearranging algebraic formula- make a the subject of the formula.

p=3a+5/4-a. 1.Times both side by (4-a) in order to remove the denominator. p(4-a)=3a+5. 2. Expand the brackets. 4p-ap=3a+5 3.Now you need to get the two a's on the same side. doesn't matter if you plus the ap or minus the 3a, but generally easier to work in positives if you can. 4p-5=3a+ap. 4.Now factorise the right hand side by the common factor (a). 4p-5=a(3+p). 5.In order to get a on its own divide both sides by (3+p) leaving you with your answer 4p-5/3+p=a

Answered by Maths tutor

2859 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do I factorise 3xy^2 – 6xy fully?


The equation of line L1 is y=4x+3, The equation of line L2 is 4y-16x-2=0, Show that these two lines are parallel.


How do I work out the area of a quarter circle with radius 6cm?


(root18 +root2)sqaured/(root8-2). Give answer in form A(B+rootC) where A,B and C are integers


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:

© 2025 by IXL Learning