7x + 5y = 43 --------(i)
5x + 5y = 5 --------(ii)
for solving, eqn (i) - eqn (ii)
7x + 5y = 43
5x + 5y = 5
- - -
__________
2x = 38
=> x = 19
putting x = 19 in eqn (ii)
we get, y = -18
(x,y) = (19,-18)
