What are simultaneous equations and how do I solve them?

E.g you have 2 equations and have to set them equal to each other. 
2x + 3y = 6 
-3x +  y = 2

multiply first equation by 3, second by 2 to get
6 x + 9y = 18
-6 x + 2y = 4

11 y = 22

y = 2

-6x + 2(2) = 4

-6x = 0

x = 0 

SK
Answered by Susanne K. Maths tutor

4661 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Given: 𝑓(𝑥) = 𝑎𝑥^3 + 𝑏𝑥^2 − 3 and 𝑓"(−2) = 0. If it is further given that the point (−3; 6) lies on the graph of 𝑓. Show that 𝑎 = 1/3 and 𝑏 = 2.


Solve the equation 3(x+1) = 21


Sketch the graph of x^2 + 4x + 3


What is the equation of the tangent to the circle x^2 + y^2 = 25 at the point (-3, -4)?


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