Solve simultaneously 2x-y=2, 3x+2y=17 to calculate values of x and y.

This problem can be solved through substitution. The first equation provided in the question should be rearranged to give y=2x-2. This equation for y can be directly substituted into the second equation. This would give, 3x+2(2x-2)=17 therefore eliminating the y term. By expanding this equation, we get 3x+4x-4=17 which simplifies further down to 7x=21. This gives a value of x=3. In order to calculate y, we can sub this value of x into any of the equations provided in the question. For example, substituting into the first equation gives 6-y=2. As a result, rearranging this gives a value of y=4.

WR
Answered by Wasif R. Maths tutor

6151 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do I expand and simplify a double bracket equation?


A bag contains 8 oranges, 9 pears and 13 apples. What is the probability a pear is picked?


What is the method for factorising the expression 'x^2 + 3x + 2'?


give the values of x when 2x^2+5x-3=0


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:

© 2026 by IXL Learning