Question

Solve (x+y)dx +(3x +3y - 4)dy?

Answer 1

Step 1:

The differential equation is .

Consider .

Thus, .

.

Differentiate on each side.

Substitute , and in the differential equation.

Step 2:

Integrate on each side.

Replace in the above expression.

Solution of the differential equation is .

Solution :

Solution of the differential equation is .