Question

find the relation between a and b if x=2 y=3 is a solution of 2x-3y+a=0,2x+3y-b+2

Answer 1

2x-3y+a = 0
2(2)-3(3)+a=0
4-9+a=0.
4-9=-a
5=a..........(1)

2(x)-3(y)-b+2
(4-9)-b+2
5-b=-2
a-b= -2....(from (1) ,5=a)