Pls solve Q7 ii 7 Solve: (ii) x + y = 7xy 2x - Maths - Simultaneous Linear Equations

Question

Pls solve Q7 ii

7 Solve:
(ii) x + y = 7xy
2x – 3y = –xy

Gursheen Kaur · Accepted Answer

Dear Student,The given equations are x+y=7xy
(i)2x-3y=-xy
(ii)Dividing(i) and (ii) by xy, we get,1y+1x=7
(iii)  and 2y-3x=-1
(iv)LEt 1x=u, 1y=vSo, v+u=7    ]×3
(v)2v-3u=-1
(vi)it becomes,3v+3u=212v-3u=-1adding these two equations, we get,5v=20v=4put in (v), we get,4+u=7u=7-4u=3now, 1x=u=3⇒x=13and1y=v=4⇒y=14Regards!

Pls solve Q7 ii 7. Solve: (ii) x + y = 7xy 2x – 3y = –xy

Pls solve Q7 ii

7. Solve:
(ii) x + y = 7xy
2x – 3y = –xy