Answer: 44
Step-by-step explanation: they are both 44 away from 0
Let , coordinate of points are P( h,k ).
Also , k = 3h + 1
Distance of P from origin :

Distance of P from ( -3, 4 ) :

Now , these distance are equal :

Solving above equation , we get :

Hence , this is the required solution.
If you're solving for a, you would add 32 to both sides
2a=32
then you would divide by 2
a=16