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

5377 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the Simultaneous equations. 3x+5y=22 4x-5y=6


(2x + 3y)^2 – (2x – 3y)^2 = 360 show that xy is a multiple of 5


A level - Find the coordinates of the stationary point of the curve with equation : (x+y-2)^2 + e^y -1


Solve algebraically the following if there is a solution: x+y=3 2x+y=5 x^2+y=6


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