Solve simultaneous equations 3x+2y=9 5x-2y=7

Here we need to get rid of either the x or the y to find one solution to start us off. By adding these equations together we get:

3x+5x+2y-2y=9+7

The y's are eliminated to leave 8x=16. So x is 2!

We can then substitute the x value into one of the equations to find the y:

3(2)+2y=9

2y=3 therefore,   y=1.5

Answered by Jodie P. Maths tutor

3303 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

Factorise the following expression: x^2+12x-45


What is the next number in the sequence? 7 18 29 40 51 ?


How many thirds are there in 9?


If one side of rectangle is 2 times longer than other one and the area of that rectangle is 32, what is the length of shorter side?


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences