Find the missing coeffectient in the equation of the line.

Question

-4x+by=10
that passes through (2,3)

Could someone explain please..
Thanks.

Answer 1

-4(3) + b(2) = 10
-12 + b(2) = 10
b2 = 22
b = 11

Answer 2

Thankss.

Answer 3

Actually sorry.
It's

-4(2) + b(3) = 10
-8 + b(3) = 10
b(3) = 18
b = 6

I mixed X with Y