Solve these simultaneous equations: 3y + x = 18 and x - 4y = -10.

Write x in terms of y using one of the equations. Then substitute it in the second equation, which is then only in terms of y. Find y. Then you can easily find x.

Answer: x = 6 and y = 4.

TE
Answered by Tess E. Maths tutor

3032 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Lottie has a bag of applies. She gives half of them to Fred. Fred eats two and then has four left. How many apples did Lottie have at the start?


How do you simplify a surd?


Solve the simultaneous equations to find x and y: 3x + 5y = 10 , 5x + 4y = 8


(ii) In 90 days, the gas used by a family cost $198.16 . Calculate the number of units of gas used.


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 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences