Question

3y-15x=12

I have to solve the literal equation for y

Answer 1

No  problem !  You came to the right place.


You said that                                    3y - 15x = 12

Add  15x  to each side of the equation:    3y = 15x + 12

Divide each side by  3 :                              y =  5x  +  4

Probably easier than you expected.

Answer 2

Y = 5x + 4

Work is provided in the image attached.