Question

if x=1,y=2 is solution of equation a2x+ay=3.find value of a

Answer 1

A2X+AY=3
A+2A=3
3A=3
A=1

Answer 2

given
x=1
y=2
to find
a = ??
solution
put x=1
y=2
a2(1) + a(2) = 3
2a + 2a = 3
4a = 3
a = 3/4

ans.= a = 3/4