Make y the subject of the formula x=(2y-1)/(4-y)

1st step: we multiply the equation by (4-y) and we get: x(4-y)=(2y-1) 2nd step: we bring the equation to the form: 4x-xy=2y-1 3rd step: now we isolate all the y terms on the same side: 2y+xy=4x+1 4th step: we factorise to get: y(2+x)=4x+1 5th step: finally, we divide the equation by (2+x): y=(4x+1)/(2+x) Therefore, the solution is y=(4x+1)/(2+x)

AB
Answered by Andrea B. Maths tutor

10730 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

a) A line passes through (0,9) and (3,12) write down the equation of this line . b) A line perpendicular to the line in part a passes through the point (3,14) write the equation of this line.)


Find the equation of the line L passing through (0, 3) and (5, 7). What would the gradient of a line perpendicular to this line be? What about a line parallel to it?


A bag contains only apple and oranges. The probability an apple is picked randomly is 1 in 5. The apple is returned, and five more apples are added to the bag. The probability of an apple being picked is now 1in 3. How many apples were there originally?


solve the equation x^2 -5x +1 = 25


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences