Solve the simultaneous equations: y=x/2 + 2 and 2y+3x=12

Label the equations (1): y=x/2 + 2 and (2): 2y+3x=12. Firstly, multiply equation (1)by 2, this will give you (1a): 2y=x+4, then, substitute (1a) into (2). This gives you (x+4)+3x=12. Therefore, 4x+4=12. 4x=12-4, 4x=8, giving the answer x=2. Substitute this in to equation (1) to solve for y. y=(2)/2 + 2, giving y=3.

JB
Answered by Joseph B. Maths tutor

5515 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What are "x" and "y" and why are they used?


What is completing the square and how do you do it?


What is the domain and what is the range


How do you know when to use sin, cos and tan in trigonometry?


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