Solve for X and Y: 2y + x = 7; 3y - x = 8

x=1, y=3; Firstly, rearranging for x in the first equation: x = (7-2y); Substitute this into the second equation: 3y - (7 -2y) = 8; Expand: 3y -7 +2y = 8 (watch negative) 3y +2y = 15 Therefore, 5y = 15 and y=3. Now substitute Y into either of the equations to find x: 2(3) + x = 7 6 + x = 7 Therefore x = 1.

RK
Answered by Ruth K. Maths tutor

5727 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Expand and Simplify (2x+3)(3x-3)


If two linear equations, y = x + 4 and y = 2x + c, intersect at x = 1, find c.


How do you expand brackets?


2x+y=18, x-y=6; Solve the simultaneous equations


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