Solve the simultaneous equations 2x−3y=12 and 3x + 4y = 8

To solve this question we will first have to think of how we can solve something with two variables. The most common method is through elimination where we remove a variable so then we have an expression for the other. 

To do this we can multiply the first expression by 3 and the second expression by 2. This gives us 6x-9y=36 and 6x+8y=16 This means we now know that -17y=20 so y=-20/17 and then we can sub this value in to get x=72/17.

Answered by David S. Maths tutor

6121 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Triangle ABC has perimeter 20 cm. AB = 7 cm. BC = 4 cm. By calculation, deduce whether triangle ABC is a right-angled triangle. 4 marks.


Solve the simultaneous equations: 3x+2y=11, 2x-5y=1.


What is the general equation for a straight graph line and what does each part represent?


Solve the simultaneous equations : x^2 + y^2 = 13 and x = y - 5 .


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