4xy+1=3y-7x 4xy-3y=-7x-1 y(4x-3)=-7x-1 y=(-7x-1)/(4x-3)
a equals 5
-2 plus 5 equals +3
12 + 5 equals...
2y + 2xy' + 4y + 4xy' = 0 6y + 6xy' = 0 y' = -y/x
A is 14
If you already know that x = -3 and y = 5 what linear equations are you wanting to solve?
x= -.5
5
30
5
3