Solve these simultaneous equations: 2x + 3y = 19 and x + 4y = 17.

By multiplying everything in equation 2 by 2, you get 2x + 8y = 34. If you then subtract equation 1 from this you get 5y = 15. Thus y = 3, going back to equation two, and subbing y back in, x + 12 = 17, therefore x = 5.

JH
Answered by James H. Maths tutor

3473 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Can you explain how to find straight line equations?


Solve equations 2x+y=9 and x+2y=6 to find x and y.


Factorise x^2 +2x+1 to the form (x+a)(x+b)


It would take 120 minutes to fill a swimming pool using water from 5 taps. How many minutes will it take to fill the pool if only 3 taps are used?


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