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

5345 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve X^2 - 10X + 18=0


Factorise x² + 2x - 8


Please explain the difference between compound and simple interest


Solve the simultaneous equations 3x+2y=8 and 3y+4x=11


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