Solve the following simultaneous equations: y - 2x = 6 and y + 2x = 0

Firstly, label each of our equations: y - 2x = 6 (1) y + 2x = 0 (2)Then we can rearrange (2) to get the following: y = -2x (3)Then, substitute (3) into (1): -2x - 2x = 6Which yields the result: -4x = 6Therefore: x = -1.5We can now substitute this result into any of our previous equations to get y. Therefore: y = 3

Answered by Ciara C. Maths tutor

3372 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do I do the dot product with vectors?


A flight travels at 750kmph for 7 hours and 18 minutes, work out the distance travelled? Then convert 750 km/h into metres per second.


multiply out (2x-4)(x-2) and simplify.


Describe and explain three adaptations of succulent plants that allow them to live in hot and dry conditions.


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences