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.

DS
Answered by David S. Maths tutor

6571 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the following pair of simultaneous equations: 2y - x = 3, y + 4x = 4


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 should I present my working out?


Solve the simultaneous equations : x ^2+2y=9, y=x+3 to find solutions for x and y.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning