Find y and x of the to following equations: x +3y = 11 and x + 2y = 9.

This question can be solved using the elimination method. Set out the problem as follows: x+3y=11 - x+2y=9              0+y=2      => y=2              Therefore one can substitute the value of y obtained in to any one of the two eaquations given. For example, x + (3x2) =11. Rearranging, this gives x = 5.

MB
Answered by Munisha B. Maths tutor

6344 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Determine the next two terms in this sequence: 2, 7, 9, 16, 25, ... , ...


If L1 is y = 3x + 15 and L2 is 3y + 20 = 9x show whether or not L1 and L2 are parallel.


There are 720 boys in a school and 700 girls. The probability that a girl chosen at random studies french is 3/5 and the probability that a boy chosen at random studies french is 2/3. What is the total number of students in the school that study french?


What is 'cotx'?


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