Solve these simultaneous equations and find the values of x and y. Equation 1: 2x + y = 7 Equation 2: 3x - y = 8

We have two reliable methods of solving this simultaneous equation. We can either eliminate the variables (x or y) directly, or make one of the variables the subject of the equation. I will show you how to eliminate the variables: 2x + y = 7 and 3x - y = 8. This reduces to 5x = 15. Therefore, x = 3. And putting back into one of the equations, we can see that y = 1.

QW
Answered by Quincy W. Maths tutor

2798 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Write x² + 4x -16 = 0 in the form (x+a)² - b = 0. Solve the equation giving your answer in surd form as simply as possible.


5 White Socks and 3 Black socks are in a drawer. I take out two socks. What is the probability the socks are the same colour?


Solve 3x^2 - 4x - 6 = 0.


How do I graph linear inequalities?


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